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The single repeatable side effect of oral megadose vitamin C is a mild laxative effect if the practitioner attempts to consume too much too quickly. In the United States and Canada, a tolerable upper intake level (UL) was set at 2,000 mg/day, citing this mild laxative effect as the reason for establishing the UL. [ 1 ]
In the 1930s and 1940s, some scientific and clinical evidence suggested that there might be beneficial uses of vitamins C, E, and niacin in large doses. 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]
Proponents of orthomolecular medicine argue that supplements are less likely to cause dangerous side-effects or harm, since they are normally present in the body. [5] Some vitamins are toxic in high doses [ 70 ] and nearly all (with the possible exception of Vitamin C [ 85 ] ) will cause adverse effects given high levels of overdosing for ...
Vitamin C supplements among other dietary supplements at a US drug store. Vitamin C has a definitive role in treating scurvy, which is a disease caused by vitamin C deficiency. Beyond that, a role for vitamin C as prevention or treatment for various diseases is disputed, with reviews often reporting conflicting results.
Deficiency isn't common, but can produce some scary side effects when it does happen. Lack of vitamin B12 can cause megaloblastic anemia —a condition characterized by larger than normal red ...
Intravenous Ascorbic Acid or PAA, pharmacologic ascorbic acid [1] (also known as vitamin C or L-ascorbic acid), is a process that delivers soluble ascorbic acid directly into the bloodstream. It is not approved for use to treat any medical condition.
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 .
Megavitamin-B 6 syndrome, also known as hypervitaminosis B 6, vitamin B 6 toxicity, and vitamin B 6 excess, [a] is a medical condition characterized by adverse effects resulting from excessive intake of vitamin B 6.