I have written many times(1, 2, 3, 4) about the importance of ingesting carbohydrates during a race (if it’s long enough).
I’ve also discussed how taking in other sources of fuel, like protein, is not the best move due to it triggering an increased risk of GI distress. The reason: in part, protein is not absorbed and metabolized as quickly as carbohydrates. Delayed gastric emptying results in water diffusing into your guts and increasing the odds of needing to take a PB-killing washroom break!
One thing I have heard in response to this tip from patients and athletes at H+P is that IF one is able to handle protein from a GI standpoint, is it worth experimenting with on top of carbohydrates as a fuel source? Is there an additional benefit to taking in protein during a race if it doesn’t bother your stomach? That is what we’ll be looking at with this article.
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