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Vitamin C megadosage is a term describing the consumption or injection of vitamin C (ascorbic acid) in doses well beyond the current United States Recommended Dietary Allowance of 90 milligrams per day, and often well beyond the tolerable upper intake level of 2,000 milligrams per day. [1]
This means that half the women and more than half the men are not consuming the RDA for vitamin C. [21] The same survey stated that about 30% of adults reported they consumed a vitamin C dietary supplement or a multi-vitamin/mineral supplement that included vitamin C, and that for these people total consumption was between 300 and 400 mg/d.
Beginning in the 1930s in Canada, a megadose vitamin E therapy for cardiovascular and circulatory complaints was developed by Evan Shute and colleagues, named the "Shute protocol". [15] Tentative experiments in the 1930s by Claus W. Jungeblut [ 16 ] with larger doses of vitamin C led to Frederick Klenner's development of megadose intravenous ...
Countries do not always agree on the amounts of vitamins needed to safeguard against deficiency. For example, for vitamin C, the RDAs for women for Japan, the European Union (called Population Reference Intakes) and the US are 100, 95 and 75 mg/day, respectively. [3] [5] [16] India sets its recommendation at 40 mg/day. [17]
In the United States, overdose exposure to all formulations of "vitamins" (which includes multi-vitamin/mineral products) was reported by 62,562 individuals in 2004 with nearly 80% of these exposures in children under the age of 6, leading to 53 "major" life-threatening outcomes and 3 deaths (2 from vitamins D and E; 1 from a multivitamin with ...
In setting human nutrient guidelines, government organizations do not necessarily agree on amounts needed to avoid deficiency or maximum amounts to avoid the risk of toxicity. [43] [44] [45] For example, for vitamin C, recommended intakes range from 40 mg/day in India [46] to 155 mg/day for the European Union. [47]
Vitamin C and the Common Cold is a popular book by Linus Pauling, first published in 1970, on vitamin C, its interactions with common cold and the role of vitamin C megadosage in human health. [1] The book promoted the idea that taking large amounts of vitamin C could reduce the duration and severity of the common cold .
Short title: Birth to 36 months: Boys, Length-for-age and Weight-for-age percentiles: Image title: CDC Growth Charts: United States: Author: NCHS: Keywords
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