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You're listening to episode 208 
of the Marathon Running Podcast.

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In this episode, we're going to 
tell you why it's important to 

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plan fuelling for your long run.
This is the Marathon Running 

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Podcast by Letty and Ryan from 
We Got The Runs. 

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Join us in our running community
for weekly content that is 

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motivational, educational and 
inspirational, and that the 

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Marathon Running Podcast take 
you from the starting line to 

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the finish line and beyond. 
Hey, runners, and welcome back 

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to the Marathon Running Podcast.
My Name Is Ryan. 

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My name is Lady. 
And welcome back everybody, if 

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you are a longtime listener, and
welcome if you're new as well. 

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We do this weekly show where we 
bring on expert guests that help

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make sure that your future runs 
will all be fuelled properly, 

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trained properly and everything 
else. 

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Anything related to running we 
cover? 

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Yes, race recaps as well. 
And so on. 

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We are very grateful for all of 
our listeners and we love the 

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feedback and people always give 
us good feedback and it's really

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nice. 
Yes and yeah. 

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So this episode is gonna air the
day after Mother's Day. 

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We also wanted to say happy 
Mother's Day weekend to all moms

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out there, all mother runners. 
You guys are doing a great job 

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and we should pat ourselves on 
our backs for being awesome. 

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We're recording this on the 
Friday before Mother's Day, so 

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hopefully we'll have a great 
Mother's Day weekend at our 

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house as well. 
Can't wait for the surprise, 

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Ryan. 
You already got your surprise. 

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The show is a PG show, so umm, 
I'm not going to talk about my 

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surprise. 
Let's keep it PG. 

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Yeah. 
All right. 

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So let's move on to the next 
topic. 

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OK, YouTube. 
Yes, let's talk about YouTube. 

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So Lady's been working on a 
YouTube channel. 

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It's kind of her side project. 
You know, I've been trying to 

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help her with ideas and we're 
trying to figure out ideas on 

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what might be interesting or 
what people might like to see. 

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And one of the things I was 
thinking and you guys can give 

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us feedback if you have an 
opinion, but is to go to some of

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these other cities and try to go
to run groups and just, you 

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know, see what they're about and
kind of see what the people are.

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Take some videos of it and maybe
give some people some 

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information on on that run group
if you happen to be in that city

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or plan to go to that city or 
live in that city or anything. 

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So not all the time, but that 
was one of the things, ideas 

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that we came up with and thought
might be fun. 

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So Letty went to Miami actually,
and she did that. 

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She loves meeting new people and
just jumping into running 

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groups. 
So it's like perfect for her 

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personality. 
Yeah, I did enjoy that, although

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I was a little bit skeptical. 
I, like anyone would be 

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skeptical when their husband 
tells you, hey, travel more and 

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leave more over weekends. 
I don't know if we're, you know,

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hitting our midlife crisis or if
we're on the brink of a divorce,

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but I guess you know, it's only 
one way to find out. 

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Subscribe and follow us. 
Along with this journey, you can

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find us on YouTube by putting at
Running Podcast into the search 

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bar. 
And Ryan, I do appreciate you 

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encouraging me to travel. 
Why? 

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I know that you know that I love
traveling. 

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I'm just joking. 
Nope, he just handed me to 

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divorce papers. 
OK, I'll stop. 

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So in my last video, Ryan, my 
biggest supporter but also 

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biggest critic at times, 
mentioned to me that there was a

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term I should not have used 
during the filming of my video. 

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I thought you could have 
rephrased it a little different,

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but if anyone wants to watch the
video and try to figure out what

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I might be talking about, that 
would be an interesting. 

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And message you. 
And message us. 

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Yeah, and you can win a prize. 
So this is what prize? 

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Though I don't know yet, this is
vlog #3. 

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It's about the Miami running 
scene. 

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Again, you can find us at 
Running Podcast on YouTube. 

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But you have to give people what
they're going to win if they do 

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it. 
What's a surprise prize? 

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It's a surprise surprise. 
So you might win something and 

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you don't know what it is. 
You don't know what it is yet, 

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but that's that. 
Another thing I want to 

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encourage is that we have been 
doing monthly giveaways on our 

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Instagram. 
We've been partnering with quite

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a few brands lately and we'll we
are about to host another one 

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next week, so you can find us on
Instagram also at Running 

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Podcast and take part in those 
giveaways. 

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So if you like free stuff, go to
at Running podcast on Instagram.

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And with that, let's talk about 
today's topic. 

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Today is a nutrition based show 
where we talk to an expert, a 

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registered dietitian, about how 
your body is pumped with stress 

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hormones and the oxygenated 
blood is diverted away from your

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digestive system when you run. 
And so normally, while we would 

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listen to our bodies for 
whatever you know you feel 

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injured, you feel thirsty. 
Why? 

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It's maybe not the best idea to 
listen to your body for fueling 

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while you are running. 
Yeah, typically what I've 

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learned, and I'm no expert in 
this field, but you know, I did 

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have medical schools that your 
body has like fight or flight 

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response. 
So when you're eating, your 

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body's calm and is not worried 
about what's going around it. 

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But if you are in danger and 
need to escape, you know, by 

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running or doing other things or
fighting or anything else, your 

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body has a different mechanism 
like Letty was referring to, and

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shunts blood away from the 
digestive organs into the more 

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critical organs that you need 
for running, like your muscles 

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and things like that. 
And so you're not gonna have the

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same desires to eat. 
And that's super interesting to 

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me because I am very big on 
always listening to my body. 

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So it kind of makes sense. 
So I guess when humans did not 

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have all the luxuries we have 
now, you might have had to run 

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away from animals that were 
attacking you or even chase an 

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animal in order to get food, and
you needed to use all the 

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available energy you had to your
muscles in order to do so. 

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And you didn't. 
You know, it wasn't good to be 

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burdened by being hungry or 
other things right at that time.

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Now with now that we have all 
these luxuries, we don't have to

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do that. 
And if we're running for a long 

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period of time, the body still 
thinks we're doing the fight or 

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flight, but instead we're going 
to fuel ourselves as we're doing

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it in order to get the best 
performance. 

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Yes. 
And the expert that I'm talking 

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to in regards to this actually 
posted something like that on 

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her Instagram real. 
And it made me think twice about

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it. 
So I found that super 

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interesting. 
So that's why we're having this 

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topic today. 
And so to introduce her, our 

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expert today is Serena Murray. 
We've had her on a lot of 

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episodes in the past and always 
look for her because she has 

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always a very scientific 
explanation to many of the 

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topics, which I definitely like 
when she talks about them. 

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So yeah, Are you ready to hop 
into that? 

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Yeah. 
All right. 

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So without any further ado, 
we're now going to play our 

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conversation with Serena Marie 
Rd. 

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All right. 
So I'm back on here with Serena 

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Marie Rd. 
Thank you so much for joining me

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again. 
Thanks for having me. 

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I get so excited when I have you
like ask for me to come on the 

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the podcast. 
I get so excited. 

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You're so sweet for saying that.
And yeah, I mean, I saw one of 

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your messages that you unpacked 
or didn't unpack all the way 

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yet, which is why we're here 
about. 

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We always talk about how we have
to listen to our bodies when it 

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comes to nutrition. 
Like you know, you don't overeat

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by listening when you're full 
and all that stuff. 

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And then I saw you post 
something in regards to that we 

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really can't rely on our signals
when we're running. 

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And then I read your message 
about it and that kind of 

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intrigued me. 
So that's why I kind of wanted 

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to talk to you about that. 
So just to reiterate, maybe tell

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us what your message? 
Was absolutely. 

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And I was so happy when you, 
like, chose this topic too, 

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because I was kind of surprised.
But I got some, like, heat in 

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the comment section. 
Like people like kind of, like, 

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annoyed with me or, you know, it
like fighting with me about 

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this. 
And I was like, whoa, this was 

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not meant to be like an 
antagonizing post. 

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So it was so interesting that, 
you know, this was something 

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that needed to be dived into 
more. 

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And I think as a dietitian, 
sometimes I don't. 

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I don't see that. 
So essentially what I had said 

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was, I was in particularly 
referring to during a long run, 

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we can't rely on our body to 
tell us that our body is hungry 

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and rely on those hunger cues to
fuel. 

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Because especially during a long
run or a race, by the time you 

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get those hunger cues kicking 
in, you are behind the times. 

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Like you're kind of screwed. 
Like it's going to be really 

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hard to catch up because we can 
only tolerate so much nutrition 

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in a in a fueling while we're in
the middle of running. 

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So it's actually really 
important if you are a long 

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distance runner, if you're 
training for a race that's over 

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90 minutes especially, I would 
say that you kind of know how to

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go into it with a prophylactic 
strategy strategy with a 

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strategy to prevent getting 
overly hungry. 

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We can't just listen to our 
body, which is like a thing I 

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really like to tell my clients, 
but I always kind of think about

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sports nutrition as self-care. 
So, like, I don't get an 

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inclination at night. 
Like I need to brush my teeth. 

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I'm dying to brush my teeth. 
You know, usually I'm so tired I

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don't want to brush my teeth, 
but like, I brush my teeth to 

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take care of my, my, my dental 
health, to take care of myself. 

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And so sports nutrition is like 
that. 

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You might not feel hungry, but 
you're doing it to take care of 

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future you. 
I love this. 

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It's a great example with, you 
know, the toothbrushing 'cause 

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it makes complete sense. 
So let me just backtrack a 

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little bit. 
We always tell ourselves, listen

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to your body when you're eating 
and listen to it when you're 

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full, because your body lets you
know. 

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So that way you can avoid 
overeating. 

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Why is it that it's so different
during a long run? 

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And then please also define what
a long run is for that purpose. 

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Yeah. 
So I think the long run 

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definition, there's no like 
specific criteria, but usually I

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would say between 60 and 90 
minutes. 

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So I usually just say 75 
minutes. 

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I like go in the middle there. 
But different people are going 

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to have different thresholds 
like for someone who's new or 

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maybe a 60 minute run feels 
really taxing to their system 

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versus like Letty and I have 
been running for a long time. 

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You know, I think we can kind of
go into that 75 plus minute 

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territory for like what a long 
run is to our body. 

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So the reason we can't rely on 
listening to our body when we're

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in the middle of a long run to 
tell us that she's hungry is 

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because there's a lot of stress 
hormone being pumped through our

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body when we're running. 
I know as runners, we're like, 

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running is the most distressing,
relaxing, enjoyable. 

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Like, you know, we're all crazy.
We're like, we love running. 

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It's my my meditation and I get 
it, 'cause I'm a runner. 

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However, what's physiologically 
happening is your body is like, 

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there's a bear chasing us. 
Like, why else would this woman 

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be running right now? 
There is something stressful 

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happening. 
And so our body pumps out a 

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hormone called cortisol. 
There's more adrenaline, which 

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are these, you know, hormones 
that kind of make us feel flight

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or fight that piece of our 
nervous system that makes us be 

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in fight or flight mode. 
And when we're in fight and 

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flight mode, we don't get hunger
cues, right? 

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If you think about where, like 
the evolutionary advantage of 

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fight or flight mode was, 
something is chasing me, I'm 

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scared I'm not going to get 
hungry and stop to pick berries 

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because then the bear will eat 
me, right? 

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Like those hunger cues get down 
regulated so that you can push 

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through and keep going. 
And so that is what's being 

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what's happening. 
When we're stressed out during a

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run, we're have that cortisol 
being pumped through our body 

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and our our hunger cues, our 
hunger hormone like ghrelin is 

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being actually suppressed. 
So if you actually get to a 

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point where you're noticing 
you're hungry, maybe you're 

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noticing like, I'm lightheaded, 
I have a headache, I feel dizzy.

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That means like you have, you 
have not fueled, and like 

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finally, like there's other 
systems that are shutting down 

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because you need fuel and you 
just weren't prophylactic in 

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fueling your body before those 
hunger cues started showing up 

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in different ways. 
OK. 

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And let me just go back one more
step. 

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Just for completion purposes. 
How does your pace for those 

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long runs affect that level of 
cortisol and adrenaline? 

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Like is there a difference if 
I'm going for my 75 minute hard 

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run on Sunday or if I'm going 
for like my a slower type of 

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jog? 
Yeah. 

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Oh my God, these are like the 
best questions ever. 

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So we definitely want to make 
sure we're fueling regardless. 

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So I don't want somebody who's 
thinking, oh, on the back of the

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Packer, my 75 minutes is so much
easier than somebody else's 75 

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minutes. 
If you're running 75 minutes, I 

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want you to be really 
intentional about fueling and 

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fueling before you feel, before 
you notice that you need it. 

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However, your energy needs will 
differ depending on intensity. 

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So somebody who is a faster 
marathon time runner or BQ or 

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I'm going to be giving them 
closer to 60 to 90 grams of 

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carbohydrate per hour versus my 
those of you who are maybe more 

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of Back of the Peppers Galloway 
runners run walkers. 

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You still need energy. 
However, maybe you're sitting 

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more in that like 45 to 60 grams
per hour. 

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Another thing that changes is if
we are doing a lower intensity 

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pace, we tend to be able to 
digest food that's a little bit 

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more complex. 
So what I mean by that is when 

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I'm working with athletes who 
are more of the BQ, like faster 

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paced athletes, there's a little
bit less room for digestion 

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because the harder we're working
on, the harder our digestive 

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system is being taxed. 
And so it's going to, you're 

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really going to benefit from 
potentially using those 

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manufactured food products like 
the gels, the isotonic gels, in 

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particular the hydro gels like a
Martin's versus for those of you

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who are maybe more of a Galloway
runner because you have those 

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walk breaks where that digestive
system kind of gets to be a 

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little bit more in rest and 
digest mode versus the faster 

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runners you might be able to 
chew your food and eat like a 

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Larabar for instance. 
So the type of food definitely 

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and and the amount of 
carbohydrate that you need 

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definitely does vary depending 
on intensity, but the blanket 

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statement you need to fuel run 
75 plus minutes applies to 

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everyone. 
OK. 

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And then in that case, how would
you start that fuelling process?

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I know that you know a lot of 
people that run under 60 

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minutes, if you just run out of 
the house real quick, we don't 

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even fuel. 
But then when you do plan on 

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doing that longer run, what's 
the best fuelling strategy? 

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Do you eat before you run or do 
you during your run? 

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Or how do you do it? 
Yeah, totally. 

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So, you know, I think this is 
something that we really can 

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kind of give some, like, loose 
guidelines for right now. 

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And I definitely want to respect
the fact that, like, I, I have a

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history of a very sensitive 
stomach. 

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I'm always, like, joking around 
about, like pooping my pants on 

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00:15:05,880 --> 00:15:08,400
Instagram. 
But like, I have that history. 

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So, you know, I think it's one 
of those things where I, when I 

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was in my 20s, could have heard 
a podcast like this and then 

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00:15:13,400 --> 00:15:17,120
like, rolling my eyes like, OK, 
but I've tried that and it leads

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00:15:17,120 --> 00:15:20,280
to disastrous results for me. 
So I just, I just want to 

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00:15:20,280 --> 00:15:22,920
respect like we'll give some 
loosey, goosey guidelines right 

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00:15:22,920 --> 00:15:24,640
now. 
However, if you're feeling 

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00:15:24,640 --> 00:15:27,720
frustrated because you do 
struggle with GI distress or 

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nausea or cramping because 
you're fueling and trying to run

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00:15:32,680 --> 00:15:34,920
you know something at DM on 
Instagram at runner girl 

293
00:15:34,920 --> 00:15:38,040
dietitian, I have a whole 
awesome eat like an athlete boot

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00:15:38,040 --> 00:15:39,720
camp program that can walk you 
through this. 

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00:15:40,000 --> 00:15:43,040
But essentially what we're 
thinking is if our run is, you 

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00:15:43,040 --> 00:15:45,120
know generally you say if you're
running for 60 minutes, we 

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00:15:45,120 --> 00:15:47,040
definitely want to have a pre 
run snack. 

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So I know life happens sometimes
and we're busy and we run out 

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00:15:50,280 --> 00:15:51,920
the door. 
But you know, in those 

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situations, even something just 
if you're having, if you have 

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00:15:55,480 --> 00:15:58,520
like less than like 15 minutes 
to digest your fuel, maybe you 

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00:15:58,520 --> 00:16:01,080
have some sports drink and like 
a sweetened applesauce just to 

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00:16:01,080 --> 00:16:04,880
put a little bit of sugar into 
our system just so that our body

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00:16:05,360 --> 00:16:08,120
doesn't spike. 
Such an exaggerated cortisol 

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00:16:08,120 --> 00:16:10,760
response, right? 
Running on an empty belly can be

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00:16:10,760 --> 00:16:13,240
stressful to the system. 
So if we're giving our body some

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00:16:13,240 --> 00:16:16,080
sugar to work with, we're at 
least suppressing that cortisol 

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00:16:16,200 --> 00:16:20,520
response a little bit. 
And then if we're thinking about

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00:16:20,520 --> 00:16:25,960
I'm going on a 75 plus minute 
run, we want to start fueling at

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00:16:25,960 --> 00:16:29,840
that like 15 to 30 minute mark. 
So usually for most people that 

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00:16:29,840 --> 00:16:33,680
30 minute mark is is fine. 
And so we want to break up our 

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00:16:33,680 --> 00:16:37,920
carbohydrate goal into pieces 
like if my goal is 90 grams per 

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00:16:37,960 --> 00:16:41,840
hour, I'm not going to take 90 
grams of carb in one fueling 

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00:16:41,840 --> 00:16:46,080
that probably will just be too 
much at once and need to GI 

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00:16:46,080 --> 00:16:48,120
distress. 
So if you're somebody with a 

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00:16:48,120 --> 00:16:51,360
history of sensitive belly, 
first of all like my heart goes 

317
00:16:51,360 --> 00:16:53,600
out to you because I've been 
there and it's annoying. 

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00:16:54,200 --> 00:16:57,120
But we just really wanted to 
say, OK, I'm going to start at 

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00:16:57,120 --> 00:16:59,320
the lowest end. 
I'm going to start at 45g per 

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00:16:59,320 --> 00:17:01,560
hour. 
Even if I'm like ABQ athlete, I 

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00:17:01,560 --> 00:17:05,000
would love to get up to 7090 
grams per hour because I know 

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00:17:05,000 --> 00:17:07,119
that's where I can get into my 
greatest potential. 

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00:17:07,400 --> 00:17:10,280
I'm going to start at the low 
end and then we would maybe take

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00:17:10,280 --> 00:17:14,359
that and we would half it and 
maybe we just take half a gel 

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00:17:14,560 --> 00:17:18,640
for that, that first 30 minute 
fueling and see how that feels. 

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00:17:18,800 --> 00:17:22,079
Making sure we're we're dialing 
in our hydration as well because

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00:17:22,079 --> 00:17:25,720
making sure we get enough fluid 
and enough electrolytes also 

328
00:17:25,720 --> 00:17:28,359
plays a role in optimizing 
digestion. 

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00:17:28,520 --> 00:17:33,360
So I would say start small and 
then increase as your tolerance 

330
00:17:33,360 --> 00:17:35,960
is built. 
This is literally a muscle we 

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00:17:35,960 --> 00:17:39,360
can literally practice and teach
our body to tolerate nutrition. 

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00:17:39,360 --> 00:17:42,360
I am living proof of this, but 
definitely you want to make sure

333
00:17:42,360 --> 00:17:44,480
you have a route with the 
bathroom nearby, just in case 

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00:17:45,040 --> 00:17:48,240
you know those reps cause any 
distress as you're as you're 

335
00:17:48,240 --> 00:17:50,640
teaching your body. 
I I like that. 

336
00:17:50,640 --> 00:17:52,520
You know, that makes a lot of 
sense. 

337
00:17:52,880 --> 00:17:54,840
And you mentioned something you 
were talking about. 

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00:17:55,360 --> 00:17:58,480
You know, if you fuel we get to 
run to our greatest potential. 

339
00:17:58,480 --> 00:18:01,520
Maybe you can tell us what's on 
the other side because obviously

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00:18:01,520 --> 00:18:07,320
we've heard about a fat adaptive
and all that stuff where it's 

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00:18:07,320 --> 00:18:10,320
almost like you can teach your 
body to go without it. 

342
00:18:10,320 --> 00:18:14,120
But then I mean if that's not 
necessary, let's talk about that

343
00:18:14,120 --> 00:18:15,920
greatest potential. 
I want to hear the other side of

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00:18:15,920 --> 00:18:17,400
that. 
Yeah. 

345
00:18:17,400 --> 00:18:23,320
So you know I I there is 
definitely a camp that believes 

346
00:18:23,320 --> 00:18:25,560
in like low carb running, fat 
adapted running. 

347
00:18:25,840 --> 00:18:30,800
I went to this like sports 
nutrition conference a few years

348
00:18:30,800 --> 00:18:34,360
ago and there was like it was 
almost like the fat adapted 

349
00:18:34,360 --> 00:18:37,360
people versus the like fuel your
runs people. 

350
00:18:37,760 --> 00:18:40,600
And it was funny because I don't
want to say there's like like 

351
00:18:40,600 --> 00:18:43,280
it's completely made-up like fat
adapted running. 

352
00:18:43,440 --> 00:18:48,200
You can run low carb, you can 
teach your body to up regulate 

353
00:18:48,760 --> 00:18:52,760
burning fatty acids in the 
system to run further that way. 

354
00:18:53,040 --> 00:18:56,760
However, what the science shows 
repeatedly is that if you care 

355
00:18:56,760 --> 00:19:00,000
about performance, if you're 
like I want to run my fastest 

356
00:19:00,000 --> 00:19:02,560
race, I want to see what I'm 
really made of, I want to leave 

357
00:19:02,560 --> 00:19:05,920
it all out on the line. 
There is no data that says the 

358
00:19:05,920 --> 00:19:09,520
fat adapted approach is going to
support those goals. 

359
00:19:09,760 --> 00:19:12,640
So you know, a lot of the 
athletes I work with like we're 

360
00:19:12,640 --> 00:19:14,600
busy. 
We've got a lot going on. 

361
00:19:14,880 --> 00:19:17,600
We're putting a lot of time and 
effort and sweat and tears into 

362
00:19:17,600 --> 00:19:20,120
this training. 
I want to see what I'm made of 

363
00:19:20,120 --> 00:19:23,840
like I want to get the most out 
of this and so it's like why not

364
00:19:23,840 --> 00:19:27,480
just say I'm going to grab a few
gels or whatever it is that you 

365
00:19:27,480 --> 00:19:30,880
want to fuel with and and time 
them appropriately and figure 

366
00:19:30,880 --> 00:19:34,080
out that fueling strategy. 
Because even though we can up 

367
00:19:34,080 --> 00:19:40,720
regulate fatty acid burning to 
help to support long runs, is it

368
00:19:40,720 --> 00:19:44,160
necessarily where is it our 
bodies preferred energy source? 

369
00:19:44,600 --> 00:19:47,360
No, our bodies preferred energy 
source, our muscles preferred 

370
00:19:47,360 --> 00:19:50,840
energy source is sugar. 
And so when we're fueling, we're

371
00:19:50,840 --> 00:19:54,880
using gels, we're using gummy 
candy, we're using dried 

372
00:19:54,880 --> 00:19:58,600
bananas, we're using all these 
different carbohydrate sources 

373
00:19:58,600 --> 00:20:02,040
sugary sports drink. 
It's to give our muscles a very 

374
00:20:02,040 --> 00:20:05,800
quick dose of energy, a very 
quick dose of sugar, so that you

375
00:20:05,800 --> 00:20:09,600
can actually. 
Push yourself harder because you

376
00:20:09,600 --> 00:20:13,560
don't have to go through the 
extra steps to use fatty acid 

377
00:20:14,480 --> 00:20:17,880
oxidation to get your energy. 
You know. 

378
00:20:17,920 --> 00:20:20,600
And then I think you know, even 
just taking performance out of 

379
00:20:20,600 --> 00:20:24,320
this, like I think another thing
that's important to know is and 

380
00:20:24,320 --> 00:20:27,840
I do specialize in in female 
athletes, but you know for women

381
00:20:27,840 --> 00:20:31,680
athletes, our body is very 
sensitive to energy restriction.

382
00:20:31,680 --> 00:20:34,480
And especially as I start to 
work with athletes who are in 

383
00:20:34,480 --> 00:20:38,360
perimenopause or post menopause 
or athlete who are still getting

384
00:20:38,360 --> 00:20:43,400
their cycle but maybe they have 
a history of Reds or have a 

385
00:20:43,400 --> 00:20:46,880
history of of injury. 
Our body is so sensitive to 

386
00:20:46,920 --> 00:20:50,560
energy restriction. 
So when you're waking up fasted 

387
00:20:50,560 --> 00:20:54,000
and then running an hour, 2 
hours with barely anything 

388
00:20:54,000 --> 00:20:58,160
fueling your body, you are 
causing such a surge of cortisol

389
00:20:58,480 --> 00:21:03,200
of stress hormone. 
Our adrenals are responsible for

390
00:21:03,200 --> 00:21:06,240
creating stress hormone 
cortisol, but they're also 

391
00:21:06,280 --> 00:21:09,440
responsible for creating 
testosterone, A hormone that can

392
00:21:09,440 --> 00:21:12,160
help us build muscle. 
They're also responsible for 

393
00:21:12,160 --> 00:21:18,000
creating DHEA, this hormone that
kind of can work to help us with

394
00:21:18,480 --> 00:21:20,520
with energy production and also 
building muscle. 

395
00:21:20,720 --> 00:21:24,000
So when we're choosing to run 
these runs fasted and getting 

396
00:21:24,000 --> 00:21:28,080
our adrenals to focus just on 
surging of cortisol, creation of

397
00:21:28,080 --> 00:21:31,000
stress hormone, we're 
sacrificing our body's ability 

398
00:21:31,000 --> 00:21:33,880
to create these other hormones 
that actually have really 

399
00:21:33,880 --> 00:21:37,880
beneficial responses for 
recovery and building muscle, 

400
00:21:37,880 --> 00:21:39,880
which is something that's 
important to keeping a healthy 

401
00:21:39,880 --> 00:21:42,920
metabolism. 
So anyway, I'm like really 

402
00:21:42,920 --> 00:21:44,720
passionate about this if you 
can't tell. 

403
00:21:45,640 --> 00:21:47,960
So that would be why I don't 
recommend fat adapted running, 

404
00:21:47,960 --> 00:21:50,840
especially for women. 
No, I I absolutely love this 

405
00:21:50,840 --> 00:21:53,640
answer and I love that you got 
into so much, you know, detail 

406
00:21:53,640 --> 00:21:55,760
and science about it. 
I super appreciate it. 

407
00:21:56,600 --> 00:21:58,640
All right. 
So you were talking about 

408
00:21:58,720 --> 00:22:02,040
nutrition, preferred nutrition, 
and obviously, we all know 

409
00:22:02,040 --> 00:22:04,240
there's different nutrition. 
The one that's easily 

410
00:22:04,240 --> 00:22:08,480
digestible, the ones that are 
prepared like gels, maybe just 

411
00:22:08,480 --> 00:22:13,320
briefly walk us through what the
best nutrition is for what type 

412
00:22:13,320 --> 00:22:15,400
of athlete. 
Okay. 

413
00:22:15,480 --> 00:22:17,320
Yeah. 
So I think the first thing is 

414
00:22:17,320 --> 00:22:19,920
like, there is no 
one-size-fits-all. 

415
00:22:19,920 --> 00:22:22,240
So like, I really want to 
encourage you to try all the 

416
00:22:22,240 --> 00:22:26,160
things and see what you prefer. 
I have athletes who love gummies

417
00:22:26,160 --> 00:22:27,280
and they're like, oh, I love 
this. 

418
00:22:27,280 --> 00:22:29,800
It's yummy. 
And then someone like me. 

419
00:22:29,840 --> 00:22:32,680
I'm like all that chewing makes 
me like I'm working hard enough,

420
00:22:32,680 --> 00:22:33,760
I'm running, I don't want to 
chew. 

421
00:22:33,760 --> 00:22:36,520
So like everyone is very 
different and I don't want you 

422
00:22:36,520 --> 00:22:39,760
to feel like you have to do this
because Serena said it. 

423
00:22:40,440 --> 00:22:44,280
So I will say if you are a a 
back of the Packer, if you're 

424
00:22:44,280 --> 00:22:47,080
walking, if you're Galloway, 
which you know Galloway's are 

425
00:22:47,080 --> 00:22:49,200
not necessarily back of the pack
but you are walking. 

426
00:22:49,200 --> 00:22:51,960
So you have a little bit more 
flexibility in your digestive 

427
00:22:51,960 --> 00:22:57,440
system is my point here is that 
you potentially will be able to 

428
00:22:57,440 --> 00:23:02,080
to tolerate a little bit more 
protein or fat with your 

429
00:23:02,080 --> 00:23:05,640
carbohydrate and sometimes this 
can be beneficial especially if 

430
00:23:05,640 --> 00:23:08,280
you're running a race that's 
going to take 4 plus hours. 

431
00:23:08,560 --> 00:23:10,600
So if you're going to be out 
there for five hours, six hours,

432
00:23:10,600 --> 00:23:14,360
7 hours, whatever ultra 
marathoners too this supplies 

433
00:23:14,920 --> 00:23:18,160
having a little bit like less 
than 5 grams of fat or protein 

434
00:23:18,160 --> 00:23:21,200
with that carb can be really 
helpful for keeping blood sugar 

435
00:23:21,200 --> 00:23:26,160
stable. 
So things like a Larabar or a 

436
00:23:26,160 --> 00:23:28,880
Uncrustables is really popular 
or like making your own like 

437
00:23:29,560 --> 00:23:32,520
tortilla with some peanut butter
and banana or Jelly on it or 

438
00:23:32,520 --> 00:23:35,440
something like that can be 
something that you might want to

439
00:23:35,440 --> 00:23:38,200
add in to just help with 
stabilizing those blood sugars. 

440
00:23:38,200 --> 00:23:40,640
Because you might be out there 
for four plus hours. 

441
00:23:41,280 --> 00:23:45,680
And then also because we have 
those walk breaks, we might be 

442
00:23:45,680 --> 00:23:50,120
able to just like tolerate a 
little bit more of that hefty 

443
00:23:50,640 --> 00:23:52,520
protein and fat are just harder 
to digest. 

444
00:23:52,520 --> 00:23:54,400
I think that's like probably 
something I should have led 

445
00:23:54,400 --> 00:23:56,280
with. 
And I didn't say protein and fat

446
00:23:56,280 --> 00:23:59,680
are harder to digest than than 
simple carbohydrates. 

447
00:23:59,680 --> 00:24:03,800
So avoiding fiber and then lower
fat, lower protein foods. 

448
00:24:03,800 --> 00:24:07,240
So like I was just saying the 
something with a little bit of 

449
00:24:07,240 --> 00:24:11,480
nuts or a little bit of fat or 
protein can be digested better 

450
00:24:11,520 --> 00:24:13,720
by those people. 
Now for those of you who are 

451
00:24:13,720 --> 00:24:17,400
maybe pushing the pace and maybe
you're really giving it your 

452
00:24:17,400 --> 00:24:20,360
all, it doesn't matter how like 
what your your speed is like 

453
00:24:20,360 --> 00:24:24,000
just for you as a human being, 
your individual body, you're 

454
00:24:24,000 --> 00:24:29,000
like this is hard effort like I 
am really putting all of my, I 

455
00:24:29,000 --> 00:24:31,600
am like pushing my heart rate 
for this race. 

456
00:24:31,600 --> 00:24:35,160
Whatever pace you're running, 
you might actually want to 

457
00:24:35,160 --> 00:24:38,280
choose foods that are a little 
bit more carbohydrate based 

458
00:24:38,280 --> 00:24:41,720
rather than having the the fat 
and protein thrown in there. 

459
00:24:42,000 --> 00:24:44,240
If it is a race where you're 
going to be hitting that four 

460
00:24:44,240 --> 00:24:47,240
plus hour mark regardless, 
that's when I will start to 

461
00:24:47,240 --> 00:24:49,040
throw in a little bit of protein
and fat. 

462
00:24:49,040 --> 00:24:51,200
But for those of you who are 
maybe running a marathon, it's 

463
00:24:51,200 --> 00:24:52,800
less than four hours or half 
marathon. 

464
00:24:52,800 --> 00:24:54,240
It's you know less than four 
hours. 

465
00:24:54,480 --> 00:24:57,240
We can just really focus on 
primarily getting food or fuel 

466
00:24:57,240 --> 00:24:59,600
from carbohydrates. 
So this is where you get to 

467
00:24:59,600 --> 00:25:03,200
decide, do I want to do like, 
the manufactured food products 

468
00:25:03,200 --> 00:25:07,360
or do I want to choose like the 
cheaper but often require more 

469
00:25:07,360 --> 00:25:10,240
chewing foods that you can buy 
in the grocery store. 

470
00:25:10,240 --> 00:25:13,320
So, you know, you could use 
gummy bears. 

471
00:25:13,320 --> 00:25:15,960
You could use Sour Patch Kids. 
You know, those gummy candies 

472
00:25:15,960 --> 00:25:19,240
that have the sugary coating are
often awesome because you can 

473
00:25:19,240 --> 00:25:21,720
take less of them and get more 
energy per bite. 

474
00:25:22,240 --> 00:25:24,520
You could use dried cranberries,
sweetened cranberries. 

475
00:25:24,520 --> 00:25:26,080
You could use sweetened 
applesaus. 

476
00:25:26,800 --> 00:25:30,800
You could use Pop Tart. 
You know, you could use any food

477
00:25:30,800 --> 00:25:33,960
that's just like simple, super 
easy to digest carbohydrate. 

478
00:25:34,560 --> 00:25:36,840
You do want to look at the 
nutrition facts label and you 

479
00:25:36,840 --> 00:25:40,360
want to make sure you're hitting
like that 45g minimum per hour. 

480
00:25:40,680 --> 00:25:42,720
And then there's going to be a 
camp of us. 

481
00:25:42,720 --> 00:25:45,080
I'm in this camp. 
I like to use the manufactured 

482
00:25:45,080 --> 00:25:48,040
food products like they're a 
little more expensive, but I'm 

483
00:25:48,040 --> 00:25:49,920
lazy. 
I don't want to be measuring 

484
00:25:49,920 --> 00:25:52,920
things out. 
And also for my sensitive belly,

485
00:25:52,920 --> 00:25:55,760
I just really found that there 
are certain gels that work 

486
00:25:55,760 --> 00:25:59,240
really well for me. 
So and the products that are 

487
00:25:59,240 --> 00:26:04,760
marketed as like isotonic gels, 
like science and sport Martens 

488
00:26:04,760 --> 00:26:07,440
is that hydrogel that tends to 
be really well digested for 

489
00:26:07,440 --> 00:26:09,040
those of us who have a sensitive
belly. 

490
00:26:09,520 --> 00:26:12,000
But really any of those gels, as
long as you're drinking enough 

491
00:26:12,000 --> 00:26:14,320
fluid with them, should be well 
tolerated. 

492
00:26:14,320 --> 00:26:17,520
So like any of the gels that you
enjoy, just making sure you're 

493
00:26:17,520 --> 00:26:20,760
taking enough to hit that 45 to 
90 grams per hour. 

494
00:26:21,960 --> 00:26:23,160
Perfect So. 
That answer your question? 

495
00:26:23,360 --> 00:26:25,360
Yes, you absolutely did. 
Thank you so much. 

496
00:26:25,360 --> 00:26:27,080
And I wanted to ask you your 
last question. 

497
00:26:27,320 --> 00:26:32,200
What is the biggest avoidable 
mistake that you observe that 

498
00:26:32,200 --> 00:26:36,480
runners do when it comes to 
fueling their marathons? 

499
00:26:39,760 --> 00:26:44,280
There's a lot, I think what I 
want, There's like so many ways 

500
00:26:44,280 --> 00:26:47,040
that can go wrong. 
And This is why it's so maybe, 

501
00:26:47,040 --> 00:26:51,040
like, the blanket statement is 
you have to practice everything 

502
00:26:51,040 --> 00:26:53,440
you're going to do on race day 
before race day. 

503
00:26:53,680 --> 00:26:56,160
Like, don't listen to this 
podcast and be like, oh, Serena 

504
00:26:56,160 --> 00:26:59,000
said, if I run 890 grams per 
hour, I'm going to run faster 

505
00:26:59,000 --> 00:27:01,200
and you've never practiced it 
before, you're going to poop 

506
00:27:01,200 --> 00:27:03,040
your pants, you're going to 
throw up like something 

507
00:27:03,040 --> 00:27:06,120
disastrous is going to happen. 
So don't do that. 

508
00:27:06,120 --> 00:27:11,680
We have to train our body to 
tolerate you know seventy 6090 

509
00:27:11,680 --> 00:27:14,240
grams of carb per hour whatever 
it is that you're shooting for. 

510
00:27:14,960 --> 00:27:18,360
So making sure you're practicing
whatever your fuel strategy is 

511
00:27:18,360 --> 00:27:20,800
before race day. 
The other shout out we didn't 

512
00:27:20,800 --> 00:27:23,600
spend a lot of time on this 
today but like hydration makes a

513
00:27:23,600 --> 00:27:25,440
really big difference for 
tolerance. 

514
00:27:25,440 --> 00:27:28,880
So you know, I mean you could be
saying to yourself I can't 

515
00:27:28,880 --> 00:27:31,760
tolerate 60 grams per hour every
single time I try it. 

516
00:27:31,760 --> 00:27:34,360
I get cramps, I get diarrhea. 
It just does not work for me. 

517
00:27:34,680 --> 00:27:37,320
And then we can simply sit here 
and we can dial in your 

518
00:27:37,320 --> 00:27:40,880
hydration strategy and make sure
you're adding enough hydration 

519
00:27:40,880 --> 00:27:44,920
and enough sodium salt during 
your run that it will completely

520
00:27:44,920 --> 00:27:48,320
change how your body is able to 
digest sugar and absorb sugar. 

521
00:27:48,560 --> 00:27:52,040
So really want to make sure 
we're factoring in hydration 

522
00:27:52,160 --> 00:27:54,880
when we're thinking about our 
long run fueling strategy, 

523
00:27:54,880 --> 00:27:57,320
especially if you have a history
of sensitive belly. 

524
00:27:58,440 --> 00:28:00,480
I love it. 
Thank you so much, Serena. 

525
00:28:00,480 --> 00:28:03,480
And I know that you recently 
changed your handle on 

526
00:28:03,480 --> 00:28:05,360
Instagram. 
Maybe let us know what your new 

527
00:28:05,360 --> 00:28:07,760
handle is and then also how 
people can get in touch with you

528
00:28:07,760 --> 00:28:11,840
if they want to. 
Absolutely So my new handle is 

529
00:28:11,880 --> 00:28:17,160
at runner girl dietitian so send
me a DMI am very active on the 

530
00:28:17,160 --> 00:28:18,600
gram. 
You can always chat with me 

531
00:28:18,600 --> 00:28:21,400
there. 
I also have a free training out 

532
00:28:21,400 --> 00:28:24,840
right now. 
It's called Hack Your Hydration 

533
00:28:25,040 --> 00:28:28,080
and it really helps you to when 
you when you join you get like a

534
00:28:28,080 --> 00:28:30,840
little handout and you can fill 
it in and really create your 

535
00:28:30,840 --> 00:28:35,920
step by step guide to an intro 
long run hydration strategy to 

536
00:28:35,920 --> 00:28:37,680
get enough sodium to get enough 
fluid. 

537
00:28:38,040 --> 00:28:41,520
I, I and like give it all away. 
There's like no like hidden 

538
00:28:41,920 --> 00:28:44,440
messages there. 
So if you are interested in 

539
00:28:44,440 --> 00:28:48,760
learning how to hydrate your 
long runs you can just DM me on 

540
00:28:48,760 --> 00:28:51,200
Instagram. 
The words Cruel Summer, I'm a 

541
00:28:51,360 --> 00:28:55,040
Swifty Cruel Summer. 
And you'll get that automatic 

542
00:28:55,040 --> 00:28:58,640
link to join that Hacker 
Hydration Master class for free.

543
00:28:59,240 --> 00:29:01,840
OK, perfect. 
So we'll link all that in our 

544
00:29:01,840 --> 00:29:03,600
show notes. 
And as always, thank you so 

545
00:29:03,600 --> 00:29:06,280
much. 
You're welcome, Letty. 

546
00:29:06,280 --> 00:29:12,480
Thank you so much for having me.
Thank you, Serena, for coming on

547
00:29:12,480 --> 00:29:14,720
to our show. 
We absolutely appreciate your 

548
00:29:14,720 --> 00:29:19,400
knowledge and explanation and 
your input and tips for how to 

549
00:29:19,400 --> 00:29:23,400
best fuel your long runs. 
So that way we can kind of 

550
00:29:23,640 --> 00:29:27,960
perform to our best and not just
get by because I guess you know,

551
00:29:27,960 --> 00:29:29,120
that's that's the whole point, 
right? 

552
00:29:29,120 --> 00:29:30,440
We run because we want to get 
better. 

553
00:29:30,440 --> 00:29:34,400
We don't just run because we 
want to keep running without any

554
00:29:34,400 --> 00:29:36,840
benefits. 
Yeah, I always like to get the 

555
00:29:36,840 --> 00:29:40,240
scientific background of things 
and just understand how things 

556
00:29:40,240 --> 00:29:42,080
work. 
Just my brain works better that 

557
00:29:42,080 --> 00:29:45,360
way. 
And as Lenny knows, if if it's 

558
00:29:45,360 --> 00:29:49,040
something that goes along with 
what makes sense to me and 

559
00:29:49,520 --> 00:29:53,480
agrees with stuff that I've 
learned, then I'm easy to accept

560
00:29:53,480 --> 00:29:56,040
it. 
Whereas if there's something 

561
00:29:56,040 --> 00:30:00,240
that is different from what I've
learned, I'll accept it. 

562
00:30:00,240 --> 00:30:03,960
But it takes more effort and 
more information in order for me

563
00:30:03,960 --> 00:30:08,320
to believe it, and fortunately 
in this case, it's like it does 

564
00:30:08,320 --> 00:30:10,280
make sense. 
It's similar to what I learned 

565
00:30:10,800 --> 00:30:15,280
that you know that fight or 
flight is gonna potentially 

566
00:30:15,280 --> 00:30:20,440
dampen your desire to eat. 
And so it's a very interesting 

567
00:30:20,520 --> 00:30:23,480
but important topic. 
Yes, absolutely. 

568
00:30:23,480 --> 00:30:25,040
And I'm kind of the same way you
are, Ryan. 

569
00:30:25,040 --> 00:30:28,520
I'm kind of understanding based 
in law school they used to call 

570
00:30:28,520 --> 00:30:30,800
me the why asker because I 
always ask why. 

571
00:30:31,000 --> 00:30:33,200
But it's because I can't 
memorize anything and if I 

572
00:30:33,200 --> 00:30:35,320
understand the reason behind it 
then it's much easier to 

573
00:30:35,320 --> 00:30:37,240
comprehend it. 
So this one it complete sense to

574
00:30:37,240 --> 00:30:40,600
me and yeah so that wraps up 
today's episode. 

575
00:30:40,920 --> 00:30:42,640
Stay tuned for next weeks 
episode. 

576
00:30:42,640 --> 00:30:47,320
Next week we are gonna talk to 
coach Chris Knighton about, I 

577
00:30:47,320 --> 00:30:50,080
think it's about 7:00 or age of 
running philosophies. 

578
00:30:50,080 --> 00:30:52,800
So basically think you are 
sitting there trying to pick a 

579
00:30:52,800 --> 00:30:54,920
running coach, which one works 
best for you? 

580
00:30:55,160 --> 00:30:57,120
Obviously you can see the 
results of them. 

581
00:30:57,120 --> 00:31:00,400
But then also it's interesting 
and nice to see what running 

582
00:31:00,400 --> 00:31:03,160
philosophy this person believes 
in. 

583
00:31:03,320 --> 00:31:06,160
For example, is this a person 
that's going to make you run a 

584
00:31:06,160 --> 00:31:10,360
lot of slow miles, high mileage,
low mileage or you know, 

585
00:31:10,400 --> 00:31:13,440
different types of workouts? 
So there's seven or eight 

586
00:31:13,440 --> 00:31:15,640
different running philosophies 
that we're going to talk about 

587
00:31:15,840 --> 00:31:18,520
in next week's episode, so 
definitely turn in for that. 

588
00:31:18,760 --> 00:31:22,960
So as always, we'd love feedback
and if there's topics you guys 

589
00:31:22,960 --> 00:31:26,480
want us to cover, please let us 
know and we will research them. 

590
00:31:26,880 --> 00:31:28,400
Yes. 
And then we'll bring an expert 

591
00:31:28,400 --> 00:31:31,960
on for you guys. 
So thanks again for tuning in 

592
00:31:31,960 --> 00:31:34,840
and until next time. 
Have a good week of running. 

593
00:31:39,680 --> 00:31:42,200
Thanks for tuning in. 
For more information Ant 

594
00:31:42,200 --> 00:31:44,160
Marathon running news, please 
head to 

595
00:31:44,160 --> 00:31:49,480
www.marathonrunningpodcast.com 
and we'll be back next week. 

596
00:32:02,000 --> 00:32:04,640
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597
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