Can someone tell me why proline rich bone-broth and gelatin are "good" but proline rich grains and dairy are "bad?"
Explain.
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Prolamines (proline-containing proteins) are simply a more-difficult-to-digest class of proteins; it's part of the reason that plant proteins digest with an average efficiency of 80-85%, while animal proteins (especially muscle) digests at 90-95%. If those undigested proteins get across the gut lining then you have the potential for immunologic or other biochemistry-disrupting activity (lectins, phytoestrogens, etc). If what's getting across is the free amino acid proline, or smaller, simpler proline-containing proteins (at the level of di- and tri-peptides) then that's benign. |
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I think you're confusing proline (the amino acid) with prolamins that are the storage protein in grains. There is proline in prolamins but they are different things. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1131235/pdf/biochemj00186-0010.pdf A lot of things that have similar names act differently in the body.... glutamate/glutamine/glutathione.... cystine/cysteine/homocysteine, etc |
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Even if grains and dairy are rich sources of proline, they can still be bad in virtue of containing gluten, lactose, casein etc. which people are intolerant of. |
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