Vitamin D toxicity: What if you get too much? - Mayo Clinic
2022年3月22日 — Vitamin D toxicity, also called hypervitaminosis D, is a rare but potentially serious condition that occurs when you have excessive amounts of vitamin D in your body. Vitamin D toxicity is usually caused by large doses of vitamin D supplements — not by diet or sun exposure. That's because your body regulates the amount of vitamin D produced ...
Vitamin D - Mayo Clinic
2023年8月10日 — Vitamin D supplements are used to treat adults with severe vitamin D deficiency, resulting in loss of bone mineral content, bone pain, muscle weakness and soft bones (osteomalacia). Osteoporosis. Studies suggest that people who get enough vitamin D and calcium in their diets can slow bone mineral loss, help prevent osteoporosis and reduce bone ...
Vitamin D deficiency - Mayo Clinic
2022年10月7日 — Vitamin D deficiency — when the level of vitamin D in your body is too low — can cause your bones to become thin, brittle or misshapen. Vitamin D also appears to play a role in insulin production and immune function — and how this relates to chronic disease prevention and cancer — but this is still being investigated.
Vitamin D deficiency: Can it cause high blood pressure?
2023年4月7日 — A low vitamin D level may make a person more likely to have high blood pressure and diabetes. These conditions are risk factors for heart disease. It's unclear whether a daily vitamin D supplement protects against heart attacks and strokes. It may only help those with severely low vitamin D levels. Still, vitamin D is needed for overall good ...
Vitamin D and MS: Is there any connection? - Mayo Clinic
2023年4月19日 — Research has shown that maintaining enough vitamin D in the body may lower the risk of multiple sclerosis (MS). Several studies have shown that people who get more sun exposure and vitamin D in their diets are less likely to have MS. Taking vitamin D supplements is considered an important way to modify your risk of the disease.
Too much vitamin C: Is it harmful? - Mayo Clinic
2022年4月28日 — The recommended daily amount for vitamin C is 75 milligrams (mg) a day for women and 90 mg a day for men. During pregnancy, 120 mg a day are recommended. The upper limit for all adults is 2,000 mg a day. Although too much dietary vitamin C is unlikely to be harmful, large doses of vitamin C supplements might cause: Diarrhea; Nausea; Vomiting ...
Vitamin A - Mayo Clinic
This weight-loss drug can decrease the absorption of food sources of vitamin A. Your doctor might suggest that you take a multivitamin with vitamin A and beta-carotene while taking this medication. Retinoids. Don't use vitamin A supplements and these oral prescription drugs at the same time. This could increase the risk of high vitamin A blood ...
Vitamin d and related compounds (oral route, parenteral route)
Claims that vitamin D is effective for treatment of arthritis and prevention of nearsightedness or nerve problems have not been proven. Some psoriasis patients may benefit from vitamin D supplements; however, controlled studies have not been performed. Injectable vitamin D is given by or under the supervision of a health care professional.
Vitamin B-6 - Mayo Clinic
2023年8月10日 — A vitamin B-6 deficiency is usually coupled with deficiency in other B vitamins, such as folic acid (vitamin B-9) and vitamin B-12. The recommended daily amount of vitamin B-6 for adults 50 and younger is 1.3 milligrams. After age 50, the recommended daily amount is 1.5 milligrams for women and 1.7 milligrams for men.
Vitamin B-12 - Mayo Clinic
2024年6月28日 — Vitamin B-12 deficiency is associated with dementia and low cognitive function, but it's not clear whether vitamin B-12 supplements might help prevent or treat dementia. Athletic performance. Unless you have a vitamin B-12 deficiency, there's no evidence that vitamin B-12 supplements will boost your energy or make you a better athlete.