Vitamin B12: Understanding Deficiency and Supplementation Diet vs Disease Vitamin b12 injections I'm regularly asked whats the point in having them? Vitamin b12 is formally found in the foods we eat but studies show a large number of adults What You Need to Know About Vitamin B12 Duane NP Main benefits of B12 injections 1) Increased energy & reduced fatigue B12 helps convert food into usable energy Deficiency often causes tiredness, weakness, and low stamina 2) Healthy red blood cells Prevents