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In one study, SNAC increased the absorption of a peptide (a short chain of amino acids) by nine-fold without affecting tight junctions

[DOI] [PubMed] [Google Scholar] 77.Cutone A, Rosa L, Ianiro G, Lepanto MS, Bonaccorsi di Patti MC, Valenti P, et al

Lysine has been used for preventing and treating cold sores caused by the herpes virus, regulating stress and anxiety, and improving athletic performance

Maybe it was a social media ad, a podcast, a recommendation from someone at the gym, or a deep dive down a Reddit thread at midnight

Right arcuate fasciculus abnormality in chronic fatigue syndrome

PPIs lower stomach acid, making it hard to absorb B12