Jun 25, 2026 · 21 min · 10 segments
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The video version of this podcast is going to show B-roll from the race as I clarify something.
Hydration issues is the leading cause of gut issues, but it's not the only reason people have gut issues.
But it's normally the first thing I look at.
Because if someone doesn't have gut problems in their normal life, and then they do on race day, then it often is a hydration issue.
But if somebody's sensitive to dairy or gluten or something like that, then it could be just part of their diet that's causing an upset gut.
Very frequently, what happens is hydration's low, so the gut needs to draw hydration from other parts of the body in order to process the food, and it's working harder to process the same quantity of food, causing the cramping to happen.
So what I was talking to Lucy about is that if she has proper fuel, like she feels good, just intake a tiny bit more hydration and see if that helps with the gut issues.
A lot of times we focus on the type of food we're eating, but maybe not enough on if we're giving ourself enough hydration to process that food.
That's why I asked about the carb drink as well, because if she's having a ton of carb drink, that's more carbs, and you need more plain water.
In this case, on her race, a little sneak peek.
She ended up not having gut issues, but she did start to get dehydrated.
She didn't go to the bathroom during the race at all, and for an ultra marathon, can be a sign of dehydration.
It was good she had enough to not have gut issues, but her gut issues in the past was likely a hydration issue.
To
The video version of this podcast is going to show B-roll from the race as I clarify something.
Hydration issues is the leading cause of gut issues, but it's not the only reason people have gut issues.
But it's normally the first thing I look at.
Because if someone doesn't have gut problems in their normal life, and then they do on race day, then it often is a hydration issue.
But if somebody's sensitive to dairy or gluten or something like that, then it could be just part of their diet that's causing an upset gut.
Very frequently, what happens is hydration's low, so the gut needs to draw hydration from other parts of the body in order to process the food, and it's working harder to process the same quantity of food, causing the cramping to happen.
So what I was talking to Lucy about is that if she has proper fuel, like she feels good, just intake a tiny bit more hydration and see if that helps with the gut issues.
A lot of times we focus on the type of food we're eating, but maybe not enough on if we're giving ourself enough hydration to process that food.
That's why I asked about the carb drink as well, because if she's having a ton of carb drink, that's more carbs, and you need more plain water.
In this case, on her race, a little sneak peek.
She ended up not having gut issues, but she did start to get dehydrated.
She didn't go to the bathroom during the race at all, and for an ultra marathon, can be a sign of dehydration.
It was good she had enough to not have gut issues, but her gut issues in the past was likely a hydration issue.
To
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