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Some supplements also combine vitamin C with other flavonoids, such as citrus extract. While some research suggests that this could boost vitamin C absorption, other studies have turned up mixed results ( 16). Can vitamin C hurt your kidneys? Vitamin C — Fact sheet for consumers. Office of Dietary Supplements. https://ods.od.nih.gov/factsheets/VitaminC-Consumer/. Accessed Oct. 11, 2020. Note that the Tolerable Upper Intake Level (UL) for vitamin C for men and women ages 19 years and older is 2,000 mg. That said, some people experience side effects with frequent and prolonged intake of 1,000 mg per day ( 1, 2, 15). May play a role in cancer treatments: As researchers continue to learn about cancer, genetics, vitamin C absorption and metabolism, Peart says they’re exploring the role vitamin C might play in treating some types of cancers. “There is some promising evidence so far, as an adjunct to conventional cancer treatment,” she says. This means it could play a role in — but not replace — treatment.
Time-release vitamin C is often the preferred choice since vitamin C has better bioavailability when taken in smaller doses throughout the day. A time-release formula aims to solve this problem without taking multiple tablets, by releasing the vitamin C slowly throughout the day. Vitamin C cannot be stored in the body, so you need it in your diet every day. What happens if I take too much vitamin C?While B-complex vitamin supplements are not a cure for mental health conditions, they may help improve symptoms of depression or anxiety.
Excess vitamin C is excreted from the body through urine in the form of oxalate, which is an organic acid ( 18). Nonlinear concentration-dependent elimination kinetics resulting in anything from 0 to 100% active renal reabsorption depending on vitamin C availability and saturation of bodily compartments.Most people get enough vitamin C from a healthy diet. Vitamin C deficiency is more likely in people who: While certain conditions make it necessary for some people to supplement with B-complex vitamins, research has shown that taking a B vitamin supplement may be helpful even for people who don’t have an increased need for these nutrients. May reduce stress and boost mood