Is 400 IU Too much vitamin E?
The Food and Nutrition Board of the Institute of Medicine has set an upper tolerable intake level (UL) for vitamin E at 1,000 mg (1,500 IU) per day for supplemental vitamin E. Based on clinical trials, the dose often used for disease prevention and treatment for adults is 400 to 800 IU per day.
How many IU is 400 micrograms?
10 mcg = 400 IU.
How many IU of vitamin E should I take daily?
The Recommended Dietary Allowance (RDA) for vitamin E for males and females ages 14 years and older is 15 mg daily (or 22 international units, IU), including women who are pregnant. Lactating women need slightly more at 19 mg (28 IU) daily.
How many MG is in an IU?
0.67 mg
Unit Conversions
| Nutrient | Current DV Unit* | Current Conversion* |
|---|---|---|
| Vitamin E | IU | 1 IU = 0.67 mg for d-alpha-tocopherol (natural) 1 IU = 0.9 mg for dl-alpha-tocopherol (synthetic) |
| Vitamin D | IU | 1 IU = 0.025 mcg |
| Folate | mcg | |
| Niacin | mg |
Can I take vitamin E 400 mg daily?
Dosage is based on your medical condition and response to treatment. Do not increase your dose or take it more often than recommended. Taking too much vitamin E may increase your risk of side effects. High doses of vitamin E (400 units or more per day) may increase the chance of rare but very serious side effects.
How many IU are in vitamin E?
Some food and dietary supplement labels still list vitamin E in International Units (IUs) rather than mg. 1 IU of the natural form of vitamin E is equivalent to 0.67 mg. 1 IU of the synthetic form of vitamin E is equivalent to 0.45 mg.
What is the most vitamin E you can take?
Because of this risk, the upper limit for adults is 1,000 mg/day for supplements of either natural or synthetic vitamin E. This is equal to 1,500 IU/day for natural vitamin E supplements and 1,100 IU/day for synthetic vitamin E supplements. The upper limits for children are lower than those for adults.
Can I take vitamin E 400 IU twice a day?
Heart disease: Vitamin E might increase the risk for death in people with a history of heart disease. People with a history of heart disease should avoid taking doses of vitamin E greater than 400 IU daily.
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