Vitamin B12 Dosage: How Much Should You Take per Day? - Healthline
Feb 6, 2024 · The recommended daily intake (RDI) for vitamin B12 for people over 14 is 2.4 micrograms (mcg) (1). However, you may want to take more or less, depending on your age, lifestyle, and specific...
Vitamin B12 - Health Professional Fact Sheet
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. Because vitamin B12 contains the mineral cobalt, compounds with vitamin …
Vitamin B-12 - Mayo Clinic
Jun 28, 2024 · The recommended daily amount of vitamin B-12 for adults is 2.4 micrograms (mcg). Most people can get enough vitamin B-12 in the foods they eat. But people who follow a vegetarian or vegan diet should eat nutritional yeast and other foods fortified with vitamin B-12. Or they can take a low-dose multivitamin that includes 2.4 mcg of vitamin B-12.
Vitamin B12 - Dietary Reference Intakes for Thiamin, Riboflavin, …
The Recommended Dietary Allowance (RDA) for vitamin B 12 is based on the amount needed for the maintenance of hematological status and normal serum vitamin B 12 values. An assumed absorption of 50 percent is included in the recommended intake. The RDA for adults is 2.4 μg/day of vitamin B 12.
Vitamin B12 - Consumer - Office of Dietary Supplements (ODS)
The amount of vitamin B12 in supplements varies widely. Some provide doses of vitamin B12 that are much higher than recommended amounts, such as 500 mcg or 1,000 mcg, but your body absorbs only a small percentage of it. These doses are considered safe.
Vitamin B12 - The Nutrition Source
RDA: The Recommended Dietary Allowance for men and women ages 14 years and older is 2.4 micrograms (mcg) daily. For pregnancy and lactation, the amount increases to 2.6 mcg and 2.8 mcg daily, respectively.
What is vitamin B12 and what does it do? Vitamin B12 is a nutrient that helps keep your body’s blood and nerve cells healthy and helps make DNA, the genetic material in all of your cells. Vitamin B12 also helps prevent megaloblastic anemia, a blood condition that makes people tired and weak. How much vitamin B12 do I need?
Vitamin B12: Levels, Benefits and Sources | Ada Health
Sep 11, 2024 · Q: How much vitamin B12 should I take? The recommended dietary allowance (RDA) for B12 is A: 2.4 mcg for adults. The vitamin B12 dosage for seniors is also 2.4 mcg per day. 7. Q: When do I need to seek medical help? A: If you belong to a risk group of vitamin B12 deficiency, or feel any associated deficiency symptoms, you should seek medical help.
Vitamin B12 Deficiency: Recognition and Management - AAFP
Sep 15, 2017 · Vitamin B 12 deficiency is a common cause of megaloblastic anemia, various neuropsychiatric symptoms, and other clinical manifestations. Screening average-risk adults for vitamin B 12...
Health Benefits of Vitamin B12, Based on Science
Jan 30, 2024 · For most adults, the recommended dietary allowance (RDA) is 2.4 micrograms (mcg), though it’s higher for people who are pregnant or nursing. Vitamin B12 supplements may benefit your body...