Oral peptides face severe degradation in the GI tract, with bioavailability estimates below 1-5% for most peptides
Whey protein concentrate ameliorates lung damage and inhibits lung furin activity targeting SARS-CoV-2 S1/S2 site cleavage and SARS CoV-2 spike protein-angiotensin converting enzyme binding and could be used to protect against COVID-19 inhibiting SARS-CoV-2 cell entry (Tufan et al., 2022)
Multiple doses or continual infusions lasting several days may be necessary to produce and maintain beneficial effects in severe poisoning
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Ayala TB, Huitrn RL, Aparicio LC, Ortega DR, Esquivel DG, Chaverr JP, et al
DIY or gray-market peptides carry significant risks