Vitamin B12 Dosage: How Much Should You Take per Day? - Healthline
网页2024年2月6日 · 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 - Uses, Side Effects, and More - WebMD
网页Learn more about VITAMIN B12 uses, effectiveness, possible side effects, interactions, dosage, user ratings and products that contain VITAMIN B12.
Vitamin B-12 - Mayo Clinic
网页2024年6月28日 · Left untreated, a vitamin B-12 deficiency can lead to anemia, fatigue, muscle weakness, intestinal problems, nerve damage and mood disturbances. 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.
Vitamin B-12 Tablet - Uses, Side Effects, and More - WebMD
网页Find patient medical information for Vitamin B-12 oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings.
Vitamin B12 - Consumer - Office of Dietary Supplements - Vitamin B12
网页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. Check the Supplement Facts label to see how much vitamin B12 a supplement contains.
Vitamin B12 - Health Professional Fact Sheet
网页Vitamin B12 levels are higher, generally 50–500 mcg, in supplements containing vitamin B12 with other B-complex vitamins and even higher, typically 500–1,000 mcg, in supplements containing only vitamin B12. The most common form of vitamin B12 in dietary supplements is cyanocobalamin [1, 3, 23, 24].
Vitamin B12: Health Benefits, Safety Information, Dosage, and More - WebMD
网页2022年9月21日 · Vitamin B12 is an essential nutrient that helps the body create DNA, nourishes the brain and nervous system, and assists with the formation of healthy red blood cells.
Vitamin B12: What it is and how much you need each day - Fortune
网页2 天之前 · How much vitamin B12 do I need per day? Everyone requires a certain amount of B12 depending on their age, starting with .5 mcg per day for infants up to 2.4 mcg for teens and adults and even more ...
网页1,000 mcg, but your body absorbs only a small percentage of it. These doses are considered safe. Check the Supplement Facts label to see how much vitamin B12 a supplement contains. A prescription form of vitamin B12 can be given as a shot. This is usually used to treat vitamin B12 deficiency.
Vitamin B12 - The Nutrition Source
网页Vitamin B12 is a water-soluble vitamin, so any unused amount will exit the body through the urine. Generally, up to 1000 mcg a day of an oral tablet to treat a deficiency is considered safe.