The Recommended Dietary Allowance (RDA) is in fact not the body’s daily requirement exactly, but rather the amount of vitamin B12 which – according to the recommendations of the corresponding organisations – should suffice to cover the minimum daily requirement of % of healthy people. When taken at appropriate doses, vitamin B supplements are generally considered safe. While the recommended daily amount of vitamin B for adults is micrograms, higher doses have been found to be safe. Your body absorbs only as much as it needs, and any excess passes through your urine.
Bor MV, Von castel-roberts KM, Kauwell GP, et al. Daily intake of 4 to 7 microg dietary vitamin B is associated with steady concentrations of vitamin Brelated biomarkers in a healthy young population. Am J Clin Nutr. ;91(3) Darby WJ, Bridgforth EB, Le brocquy J, et al. Vitamin B12 requirement of adult . Back to Top. Food and Nutrition Board (FNB) Recommendations (#) #2: As 10 to 30 percent of older people may malabsorb food-bound B12, FNB advises those older than 50 years to meet their Recommended Daily Allowances for it by consuming foods fortified with B12 or a supplement containing B #3: In view of evidence linking folate deficiency with neural tube defects in the fetus, FNB .
Because 10% to 30% of older people do not absorb food-bound vitamin B12 efficiently, those over 50 years should meet the RDA by eating foods fortified with B12 or by taking a vitamin B12 supplement. Vitamin B12 is an essential vitamin that is necessary for many functions in the body including red blood cell formation, DNA synthesis and nervous system function. It is found naturally in many different foods and also added to others. Your need for vital nutrients may increase as you get older.
Recommended Daily Allowance The Institute of Medicine's Food and Nutrition Board recommends that healthy adult men and women over 19 years old consume micrograms of vitamin B each day. Vitamin B12 is a nutrient that plays many essential roles in your body. The RDI for vitamin B12 ranges from mcg for adults to mcg for breastfeeding women.