why is bpc 157 a banned substance BPC-157 by US Regulators | Sarav Shah, MD, FAAOS posted on the topic Is BPC-157 Banned? Oral vs.
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It suppresses microbial growth and extends the reconstituted peptides refrigerated shelf life to approximately 28 days, compared to under 72 hours with sterile water

That 2kg difference is real but not dramatic

Low B12s effect on blood is a specific type of anemia called megaloblastic anemia (as distinct from the more common iron deficiency anemia)

Interleukin-10 reduces the systemic inflammatory response in a murine model of intestinal ischemia/reperfusion

Stanford Medicine