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Adverse effects resulted mainly from long-term use (weeks or longer) and daily doses of 1000 mg or higher, causing nausea, stomach pain, flatulence, and diarrhea. [6] A review of 136 patients in seven studies who were given more than 500 mg for a month showed 25 cases of diarrhea, 8 cases of abdominal pain, 7 cases of nausea, and 5 cases of ...
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 ...
Some women may need to take iron, vitamin C, or calcium supplements during pregnancy, but only on the advice of a doctor. In the 1999–2000 National Health and Nutrition Examination Survey , 52% of adults in the United States reported taking at least one dietary supplement in the last month and 35% reported regular use of multivitamin ...
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.
In the US, the popularity for vitamin E as a dietary supplement peaked around 2000, with popular doses of 400, 800 and 1000 IU/day. Declines in usage were attributed to publications of meta-analyses that showed either no benefits or negative consequences from vitamin E supplements.
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]
Side effects from vitamin overdoses may occur, especially in patients with kidney failure. In very large doses, vitamin C in kidney-failure patients can cause severe side effects such as oxalate deposits in bone and soft tissues and may interfere with the absorption and metabolism of vitamin B 12. The product contains 1 g of vitamin C per ...
Pages in category "C-Class Dietary supplement articles" The following 106 pages are in this category, out of 106 total. This list may not reflect recent changes .