Dosage. The recommended daily intake of vitamin B12 for seniors is 2.4 micrograms. Some supplements may contain a higher dosage, ... The recommended daily intake of B12 for seniors is 2.4 mcg.

The ideal dose of vitamin B12 varies based on your sex, age, and reasons for taking it. This article examines the scientific evidence behind recommended dosages for B12 for different people and uses.

ANSWER: The DV (a replacement for what we used to call the recommended daily allowance, or RDA) for vitamin B12 is 2.4 mcg. (There are 1,000 micrograms in a milligram, so 2.4 mcg is a very small ...

Low magnesium can lead to muscle cramps, insomnia, and fatigue. Seniors should aim for about 320 mg for women and 420 mg for men daily, either through magnesium-rich foods or a gentle supplement like ...

Q: I’ve been taking a multivitamin because senior citizens need more vitamin B12 than younger people. I heard that I should take B12 separately, because the multivitamin doesn’t contain enough ...

For reference, these are the Recommended Dietary Allowances (RDA) for vitamin B12 by sex and age group — indicating the daily amount needed for healthy individuals : Men 14–18: 2.4 mcg Men 19 ...