vitaminsA vitamin is an organic molecule (or associated set of molecules) that is a vital micronutrient that an organism needs in small portions for the correct functioning of its metabolism Important nutrients cannot be synthesized within the organism, either at all or not in enough portions, and therefore have to be obtained by means of the eating regimen Vitamin C might be synthesized by some species but not by others; it isn’t a vitamin in the first instance however is in the second. The Tolerable Higher Intake Level (UL) for adults is 3,000 mcg RAE (Desk 2). It could be troublesome to achieve this stage consuming meals alone, however some multivitamin dietary supplements comprise high doses of vitamin A. Retinol is the form of vitamin A that causes the greatest concern for toxicity.

The chart below exhibits the minimal day by day requirements for vitamin A, vitamin B1 or thiamin, vitamin B2 or riboflavin, vitamin B3 or niacin, vitamin B6, vitamin B12, vitamin C, ascorbic acid , vitamin D , vitamin E, folate, folic acid , vitamin Ok, calcium, chromium, copper, fluoride , iron, magnesium, manganese, molybdenum, phosphorus, potassium, selenium, and zinc.

The reason that the set of vitamins skips directly from E to Okay is that the vitamins equivalent to letters F-J had been either reclassified over time, discarded as false leads, or renamed due to their relationship to vitamin B, which became a complex of vitamins.

Growing old impacts how effectively you soak up and use B12 from meals, so should you’re over 50, it’s probably finest to get your B12 from dietary supplements and B12-fortified foods like cereals, as well as foods which can be wealthy in it, like meat, low-fats dairy, and fish.

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