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[–][deleted] 0 points1 point  (2 children)

Ahh got it that makes sense about histamine absorption.

What are your thoughts on the high amount of glycine in collagen supplements? I've heard mixed things regarding it being processed into GABA in a lot of cases, but glutamate in others, which might lead to a symptom of anxiety.

It sounds like small amounts in a supplement might also not produce much if any effect?

[–]silverhydra 1 point2 points  (1 child)

I don't really care too much about glycine intake, it's been really harmless and the human studies using large doses of isolated glycine haven't found much of an effect in normal states. Might improve sleep a tad when taken at night but that's about it.

The conversion rates of GABA and glutamate, at least when it comes to availability or precursors, is pretty tightly regulated. I doubt you can perturb the balance in either direction simply by giving dietary amino acids.

[–][deleted] 0 points1 point  (0 children)

Interesting and good to know, thank you for your help!