why do you take b12 injections Best Vitamin Injection Site: Administering B12 Shots Why Do You Need B12

MHRA Borderline Guidance MHRA guidance updated on 2 July 2026 explains that classification can consider pharmacological properties, explicit and implied claims, intended purpose, packaging, websites, social-media content and customer reviews

World Anti-Doping Agency

Fahn, S., Parkinson Study Group

Most individuals obtain sufficient B12 from a balanced diet containing meat, fish, dairy products, and fortified foods

(PubMed) Desmond MA, Sobiecki JG, Jaworski M, et al

Vitamin B12 is a nutrient that assists the body in maintaining nerve tissue health, aiding in red blood cell formation, and helping with DNA synthesis