do athletes use bpc 157 BPC-157 gets talked about like it is a proven fix for muscle tears, tendons, ligaments, and chronic joint pain. The reality is different. The latest 2025 systematic review shows that every strong Rules and Risks of BPC-157

Take endocrinologist Karl Nadolsky, D.O

(Outlines contraindications for niacin therapy, including active peptic ulcer disease, active liver disease with elevated enzymes, hypersensitivity to niacin, and arterial bleeding, as well as monitoring recommendations for blood pressure, glucose, uric acid, etc., due to niacins systemic effects)

The goal is not to hit the tendon itself, which could cause more damage, but to saturate the surrounding tissue

Also, according to the Mayo Clinic, vitamin shots such as B12 havent been proven to be effective in weight loss management as they dont provide the promised metabolic boost that many practitioners

So, a high oral dose of 2,000 micrograms might only deliver 26 micrograms of B12 into the body (Carmel, 2008)

However, how these limits are applied has been addressed in numerous IRS notices and amended by Congress since HSAs were first established