It is also banned by WADA for competitive athletes
So far, however, research has been limited to test-tube and animal studies
Absorption issues: Some people consume enough B-12 but still develop a deficiency because their body cant absorb it effectively
16-19 Published online:May 15, 2013 Article type:Research Article Received:Mar 16, 2013 Accepted:Apr 24, 2013 How to Cite:Shekarforoush S, Aghababa H, Azizi M, Changizi-Ashtiyani S, Zarei A, et al
This includes: Those who have had allergic reactions to vitamin B12 or cobalt before People with certain health conditions, like Lebers disease Getting a full medical history and talking to a doctor before starting vitamin B12 injections is very important