Peter Attia· MD
The glucose competes for the fructose for entry into the small intestine. And as a consequence, the glucose is not as efficiently taken up. And it makes its way all the way to the colon if you give it in a sugary drink.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
The glucose competes for the fructose for entry into the small intestine. And as a consequence, the glucose is not as efficiently taken up. And it makes its way all the way to the colon if you give it in a sugary drink.
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So if you gave the same amount in a solid food, it would never make it to the colon. But because it was in a watery mixture, It would transit the intestines fast enough that there was still fructose left.