Hey, Wally Day- I'm not sure what your concern is here, but it's a concern
to me because I have a number of food allergies.  Proteins may not be
completely digested at the time they are in teh small intestine, and under
some circumstances,  the small partially digested peptides can get into the
blood stream.  They may be recognized as foreign and cause an immune
response, and in the case of gluten peptides, also neurological changes.


>First, I was under the impression that proteins are
>"disassembled" by our digestive tract into various
>amino acids, which are then assimilated and utilized
>by the body for repair, etc.. If this is true, then
>how do "foreign" proteins have an adverse effect? Is
>it a case of improper amino acid ratios? Or is it a
>case of one amino acid improperly replacing another
>amino acid? Or does the body not recognize the protein
>and therefore does not process it into amino acids?
>
>Along the same lines, why would there be a problem
>with eating grain fed vs. free range animals (besides
>the obvious higher fat content)? How could the adverse
>effect of foreign proteins possibly be transmitted to
>us through a grain fed animal?
>
>Any info would be helpful.
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Mary Thorpe
Teaching Support Specialist
Nutritional Science
MVR 3M07, 353
255-8769