vitamin b12 injections athletes for Athletes: Dosing and Evidence (2026) Vitamin B12 shots: Uses, benefits,

The necessary amount of vitamin B12 that you will need each day will depend on a few factors including your age

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While it might seem like a 1000 micrograms (mcg) B12 shot is equal to a 1,000 mcg B12 supplement, its not that simple

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I recommend: at least 2,000 mcg (g) cyanocobalamin once each week, ideally as a chewable, sublingual, or liquid supplement taken on an empty stomach or at least 50 mcg daily of supplemental cyanocobalamin or a serving of B12-fortified foods three times a day, each containing at least 190 percent of the Daily Value listed on the nutrition facts label Those over 65 years of age should take at least 1,000 mcg (g) cyanocobalamin every day