b12 injections last in system how long Vitamin Injections: What You Need To Know How Long Does a Vitamin

FDA's evaluation concluded that the criteria weighed against placement on the list, citing inadequate physicochemical characterization, immunogenicity concerns from impurities and aggregates, lack of clinical effectiveness data for any approved use, and absence of published human exposure data for the proposed subcutaneous and topical routes

Why does it take so long to recover from b12 deficiency

Even high doses of B12 dont pose any significant health risk

Cheers for the laudable move

Gastric acid releases vitamin B12 from the food that you consume, which becomes a problem for some older adults because they produce less stomach acid as they age, thereby increasing their risk for B12 deficiencies