Take your multivitamin at any time of day, but take it before or after you eat. This prevents the sensitive stomach from turning food into gas, which can cause discomfort and bloating.
How much should I take?
The amount of B12 you need depends on how often (daily) and what (amount) foods are eaten that contain vitamin B12. The American Academy of Pediatrics recommends that children get 2 micrograms (mcg) per day for normal growth. For adults who consume less than two alcoholic drinks daily, 5 mcg is recommended by the National Institutes of Health Office of Dietary Supplements (ODS).