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Registered dietitians explain what vitamin B12 is, how much you need, and the potential side effects of taking too much. Registered dietitians explain what vitamin B12 is, how much you need, and ...
The Good Housekeeping Institute tested more than 30 brands of B12 supplements, and chose Nature made B12 1000mcg as the best overall option, and Garden of Life Vitamin Code Raw B12 as the best ...
Vitamin B 12 is included in multivitamin pills; in some countries grain-based foods such as bread and pasta are fortified with B 12. In the US, non-prescription products can be purchased providing up to 5,000 μg each, and it is a common ingredient in energy drinks and energy shots, usually at many times the recommended dietary allowance of B ...
As a supplement it is used to treat vitamin B12 deficiency including pernicious anemia. [1] [2] Other uses include treatment for cyanide poisoning, Leber's optic atrophy, and toxic amblyopia. [3] [4] It is given by injection into a muscle or vein, [2] by pill or sublingually. Side effects are generally few. [2]
Most supplements contain way more than the daily recommended value of vitamin b12 (which is just 2.5 mcg), meaning you don't necessarily need to take the supplement every day.
Cyanocobalamin is a form of vitamin B 12 used to treat and prevent vitamin B 12 deficiency except in the presence of cyanide toxicity. [7] [8] [2] The deficiency may occur in pernicious anemia, following surgical removal of the stomach, with fish tapeworm, or due to bowel cancer.