You're listening to Bulletproof Radio with Dave Asprey.

Today's cool fact of the day is that the small intestine is mightier than we thought.

There's a new study out that challenges our assumptions about how your body actually

uses fructose.

It looks like your small intestine, not your liver, is the first step in processing

fructose.

And to use fructose, which comes in fruit or high fructose corn syrup or something,

your body has to convert it into glucose or other smaller molecules.

And we knew that fructose could be metabolized in your liver and your small intestine, but

we always thought it was mostly about the liver.

The new mouth study says that moderate doses of fructose, like you might find it in honey

even, it's transformed into the small intestine and that the liver only steps up.

And when the small intestine is overwhelmed with fructose.

So it seems that the small intestine might be your captain America's shield.

So if you have, say, a piece of fruit after dinner, which is something that I would recommend

on the Bulletproof diet if you're not going on a full keto part of it, that you're doing

okay.

But if you have a huge crazy amount of fructose, you're definitely going to jack up your

liver.

It turns out that fructose is tied to fatty liver disease, gout type 2 diabetes, obesity

and all sorts of other bad things.

You don't want to have more than probably 20, 25 grams of fructose in a day at max.

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