The recommended intake of vitamin B12 for people older than 14 is 2.4 micrograms a day. People who follow a vegetarian or vegan diet may need vitamin B12 supplements. Vitamin B12 injections can treat ...
Medically reviewed by Lindsay Cook, PharmD The recommended intake of vitamin B12 for people older than 14 is 2.4 micrograms a ...
Vitamin B12 is essential for nerve function and red blood cell production, with daily needs varying by age, pregnancy status, ...