Vitamin B12 Recommended Dietary Allowance

The need for vitamin b12 gradually increases with age.

Vitamin b12 recommended dietary allowance. This explains why internationally slightly different values are given for the recommended dietary allowance rda of the vitamin. Food and nutrition board fnb recommendations 2. The recommended dietary allowance rda of vitamin b12 varies depending upon your age. The recommended daily intake rdi for vitamin b12 for people over 14 is 2 4 mcg however you may want to take more or less depending on your age lifestyle and specific situation.

For pregnancy and lactation the amount increases to 2 6 mcg and. Dietary intake of vitamin b12 through breast milk infant formula and table foods is vital. Vitamin b12 is a water soluble vitamin that is naturally present in some foods added to others and available as a dietary supplement and a prescription medication. Adults ages 18 50 the recommended daily dosage for adults over 18 years old is 2 4 micrograms.

Beef liver and clams which are the best sources of vitamin b12. The recommended dietary allowance for men and women ages 14 years and older is 2 4 micrograms mcg daily. In cases of severe vitamin b12 deficiency due to inadequate intrinsic factor pernicious anemia doctors may prescribe b12 injections in the muscle. This is a fact sheet intended for health professionals.

Adult men and women have the same requirements but women need more during certain life stages. For children the rda for vitamin b12 is 0 9 micrograms mcg for ages 1 to 3 1 2 mcg for ages 4 to 8 and 1 8 mcg for ages 9 to 13. Most people can. The recommended dietary allowance or rda for vitamin b12 is intended to meet the majority of the healthy population s requirement for this vitamin.

In view of evidence linking folate deficiency with neural tube defects in the fetus fnb recommends. Recommended dietary allowances rda of vitamin b12. For a reader friendly overview of vitamin b12 see our consumer fact sheet on vitamin b12. 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 b12.

You can get recommended amounts of vitamin b12 by eating a variety of foods including the following. The daily requirement of vitamin b12 is a value that cannot be clearly determined scientifically and must therefore be calculated according to various factors. Vitamin b12 is found naturally in a wide variety of animal foods and is added to some fortified foods. It creates new red blood cells keeps your metabolism going and protects brain cells to name a few.