Search results
Results from the WOW.Com Content Network
The Recommended Dietary Allowance (RDA) for vitamin B12 is 0.9-2.4 μg/day, while the estimated average requirement in the U.S. and Canada is 0.7-2 μg/day. Elderly individuals with plasma vitamin B12 levels below 148 pmol/L are considered severely deficient, and those with levels between 148 and 221 pmol/L are marginally deficient.
Vitamin B complex. Vitamin B 1 (thiamin) Vitamin B 2 (riboflavin) Vitamin B 3 (niacin) Vitamin B 5 (pantothenic acid) Vitamin B 6 group: Pyridoxine; Pyridoxal-5-Phosphate; Pyridoxamine; Vitamin B 7 (biotin) Vitamin B 9 (folate) Vitamin B 12 (cobalamin) Choline; Vitamin A (e.g. retinol (see also - provitamin A carotenoids)) Vitamin C (Ascorbic ...
The B 12 vitamin is not abundantly available from plant products [4] (although it has been found in moderate abundance in fermented vegetable products, certain seaweeds, and in certain mushrooms, with the bioavailability of the vitamin in these cases remaining uncertain), [5] making B 12 deficiency a legitimate concern for those maintaining a ...
The tables below include tabular lists for selected basic foods, compiled from United States Dept. of Agriculture sources.Included for each food is its weight in grams, its calories, and (also in grams,) the amount of protein, carbohydrates, dietary fiber, fat, and saturated fat. [1]
Vitamin B 12 deficiency is preventable with supplements, which are recommended for pregnant vegetarians and vegans, and not harmful in others. [2] Risk of toxicity due to vitamin B 12 is low. [2] Vitamin B 12 deficiency in the US and the UK is estimated to occur in about 6 percent of those under the age of 60, and 20 percent of those over the ...
The body's stores for different vitamins vary widely; vitamins A, D, and B 12 are stored in significant amounts, mainly in the liver, [20] and an adult's diet may be deficient in vitamins A and D for many months and B 12 in some cases for years, before developing a deficiency condition.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Humans require thirteen vitamins in their diet, most of which are actually groups of related molecules (e.g. vitamin E includes tocopherols and tocotrienols): [20] vitamins A, C, D, E, K, thiamine (B 1), riboflavin (B 2), niacin (B 3), pantothenic acid (B 5), pyridoxine (B 6), biotin (B 7), folate (B 9), and cobalamin (B 12). The requirement ...