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Unread 06-20-2014, 03:30 PM
Salvatore Salvatore is offline
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Join Date: Oct 2012
Location: Australia
Posts: 223

Originally Posted by Primalkid View Post
Where did you hear that fiber interferes with protein digestion?
He said absorption:

Originally Posted by mavajo View Post
So given that high fiber interferes with protein absorption, does this become a relevant factor with Quest Protein bars? They typically have about ~17 g of fiber and ~20 g of Protein.

Originally Posted by lylemcd View Post
I should mention that very high fiber intakes can increase the amount of nutrients being lost to excretion. For example, higher fiber intakes may reduce fat absorption by about 3 percent, protein by maybe 5%. Itís been estimated that increasing fiber intake from 18 to 36 g/day would increase caloric losses by about 100 cal/day or so.

Essentially, the fiber prevents the enzymes from being able to reach the nutrients, and they simply pass through unabsorbed. This is another reason that high-fiber intakes can be useful while dieting: decreased caloric absorption. Of course, no athlete or bodybuilder wants decreased protein absorption so its sort of a mixed blessing.
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Unread 06-20-2014, 09:16 PM
Primalkid Primalkid is offline
Join Date: Sep 2012
Posts: 2,239

Originally Posted by Salvatore View Post
He said absorption:

In rats? I would love to see Lyle's referenced study because I have never heard or seen literature to suggest it was true.
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