Deficiency In healthy adults, overt vitamin B 12 deficiency is uncommon, mainly because total body stores can exceed 2,500 g, daily turnover is slow, and dietary intake of only 2.4 g/day is sufficient to maintain adequate vitamin B 12 status (see The RDA) (4)
Retrieved October 15, 2021
Folic acid, ageing, depression, and dementia
A 55-year-old woman suffered an allergic reaction after her second dose of an intramuscular cyanocobalamin B12 shot
Regular monitoring is generally unnecessary for those taking standard over-the-counter supplements, but individualised advice ensures safe and appropriate use
For many people, the main question is how often they should take Vitamin B complex injections to get the maximum benefit without overusing them