Watch more Vitamins & Supplements videos: The recommended daily allowance for vitamin B-12 for healthy adults age 19 to 30 years old is 2.4 micrograms per day. It’s known as the energy vitamin because it helps boost your metabolism and…
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Watch more Vitamins & Supplements videos: The recommended daily allowance for vitamin B-12 for healthy adults age 19 to 30 years old is 2.4 micrograms per day. It’s known as the energy vitamin because it helps boost your metabolism and…