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A member asked:
500 mcg of b12 for women over 60?
A doctor has provided 1 answer
It depends: About 40% of those over 60 are deficient in B12 (and many under 60 as well). While the dri is only 2.6 mcg it is poorly absorbed so only about 10 mcg of a 500 mcg dose is absorbed. If one eats lots of animal foods ; had adequate hydrochloric acid ; good digestion they may not need to take any, but 1000 mcg of methylcobalamin is good if deficient or for insurance- see http://bit.Ly/1607tg3.
Answered 2/8/2019
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