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"B12" and "Cbl" redirect here. For other uses of B12, see B12 (disambiguation). For the musical group, see Carbon Based Lifeforms. Pharmaceutical compound Vitamin B12 General skeletal formula of cobalamins Stick model of cyanocobalamin (R = CN) based on the crystal structure Clinical data Other names Vitamin B12, vitamin B-12, cobalamin AHFS / Drugs.com Monograph MedlinePlus a605007 License ...
Vitamin B12 foods. B12 is found in a wide array of animal-based foods, ... who are unable to absorb B12, ... To help avoid such risks, suggests Dennehy, start by speaking with your health care ...
Blood tests may show low levels of vitamin B 12, elevated levels of methylmalonic acid or homocysteine, and a routine complete blood counts may shows anemia with an elevated mean cell volume. [141] The presence of antibodies to gastric parietal cells and intrinsic factor may indicate pernicious anemia. [2]
A vitamin B12 level of less than 200 pg/mL is considered deficient. Treatment First, have your health care provider run blood tests to see if you truly have a B12 deficiency.
MyKind Organics Vegan B12 Spray. Made with methylcobalamin and oodles of organic fruit and botanicals, one spray a day tastes like raspberries while delivering 500 micrograms of vitamin B12. Plus ...
Supplementation with folate can mask vitamin B 12 deficiency. [39] [40] Consuming a vegan diet increases the risk, since Vitamin B 12 is mostly found in food and drinks made from animal products, including eggs and dairy products. Vitamin C deficiency: Deficiency leads to weakness, weight loss and general aches and pains.
[56] [57] Low levels of serum vitamin B 12 may be caused by other factors than B 12 deficiency, such as folate deficiency, pregnancy, oral contraceptive use, haptocorrin deficiency, and myeloma. [57] High serum levels may caused by supplementing with vitamin B 12 , present of antibodies to intrinsic factor, or due to underlying condition.
It is synthesized by some gut bacteria in humans and other animals, but humans cannot absorb the B 12 made in their guts, as it is made in the colon which is too far from the small intestine, where absorption of B 12 occurs. [64] Ruminants, such as cows and sheep, absorb B 12 produced by bacteria in their guts. [64]