
06-20-2014, 03:30 PM
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Senior Member
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Join Date: Oct 2012
Location: Australia
Posts: 162
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Quote:
Originally Posted by Primalkid
Where did you hear that fiber interferes with protein digestion?
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He said absorption:
Quote:
Originally Posted by mavajo
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.
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Quote:
Originally Posted by lylemcd
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%. It’s 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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