why is bpc 157 banned by the fda Regeneration or Risk? A Narrative Review of BPC-157 for Musculoskeletal Healing BPC-157, Thymosin Alpha-1, and TB4:
Description
FDA, 2025

Either works

In that situation the responsible default is not assume it is fine unless proven harmful

That said, even with triple the vitamin B12 intake, pregnant mothers serum vitamin B12 dipped into the low-to-mid range of normal in this study
