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Date Posted: 18:09:31 11/05/07 Mon
Author: S. Patterson
Subject: Re: Forbidden foods
In reply to: Joan 's message, "Re: Forbidden foods" on 22:59:42 11/03/07 Sat

Hi Joan -

No, I mean protein absorption.

For example, here is an explanation of what trypsin does, from website http://www.ebi.ac.uk/interpro/potm/2003_5/Page1.htm

"Trypsin and chymotrypsin, like most proleotytic enzymes, are synthesized as inactive zymogen precursors (trypsinogen and chymotrypsinogen) to prevent unwanted destruction of cellular proteins, and to regulate when and where enzyme activity occurs. The inactive zymogens are secreted into the duodenum, where they travel the small and large intestines prior to excretion. Zymogens also enter the bloodstream, where they can be detected in serum prior to excretion in urine. Zymogens are converted to the mature, active enzyme by proteolysis to split off a pro-peptide, either in a subcellular compartment or in an extracellular space where they are required for digestion."

>Steve, do you really mean "protein" absorption or
>"calcium" absorption?
>
>>The only food item that I am aware of that could have
>>a negative impact (potentially major problem if fed a
>>restricted diet) would be un-cooked peanuts. Raw
>>peanuts possess what is called a "trypsin inhibitor",
>>which interferes with the squirrel's digestive system
>>in such a way so as to block the absorption of protein
>>in the gut.

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