CrateDane t1_j2d8xbo wrote
Reply to comment by 97screamingcacti in If collagen is a protein, and proteins are broken down during digestion, why would collagen or collagen supplements be beneficial? Is it just hype? by skepticated
> If I remember correctly, only single amino acids can cross into the bloodstream
Small oligopeptides can also cross, via transporters (eg. SLC15A1) that can accept peptides of about 2-4 amino acids.
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