Benefits of vitamin B12 1
B12 is involved in producing serotonin, the "feel-good" chemical that helps stabilize your mood
The lack of vitamin B12 in your diet may prevent your body from obtaining the necessary energy it requires to function
The B12 deficiency itself getting worse, either because not enough unhealthy red blood cells have expired and been replaced by healthy ones (each one of them has a 90 day life-cycle), or because the B12 wasnt injected on a daily schedule
Growth, body composition, and cardiovascular and nutritional risk of 5- to 10-y-old children consuming vegetarian, vegan, or omnivore diets
It is not clear whether the long-term use of H 2 -receptor antagonists could cause overt vitamin B 12 deficiency (141, 142)