Definition of international unit in English:

international unit

noun

  • A unit of activity or potency for vitamins, hormones, or other substances, defined individually for each substance in terms of the activity of a standard quantity or preparation.

    • ‘Everyone should be taking 1,000 international units of vitamin D a day.’
    • ‘For example, Vitamin E, in doses say around 400, 800 international units a day, seems to have a significant anticancer heart protective effect.’
    • ‘And I would also recommend 1,000 international units per day of vitamin E and 400 micrograms of selenium per day.’
    • ‘Currently, the U.S. Institute of Medicine recommends that people get 2,300 to 3,000 international units of vitamin A each day and sets the safe upper limit around 10,000 units.’
    • ‘People who took more than 400 international units of vitamin E a day died at a higher rate than people who didn't take supplements.’
    • ‘A review of 63 medical studies found that taking 1,000 international units of Vitamin D can help ward off several common cancers, including breast and colon cancers.’
    • ‘We recommend that all bodybuilders who are serious about their muscle gains take 400 international units of natural vitamin E, containing all eight isomers, immediately before or after training.’
    • ‘They were randomly given 600 international units of vitamin E or placebo.’
    • ‘Nursing-facility residents who consumed 200 international units of vitamin E daily for 1 year were less likely to get the sniffles than those who took a placebo.’
    • ‘Try to stay below 25,000 international units of preformed vitamin A (retinyl palmitate).’
    • ‘They think more like 100 or 200 international units of Vitamin E are a good thing.’
    • ‘Half of the study volunteers took an extra 500 milligrams of calcium and 700 international units of vitamin D daily for 3 years.’
    • ‘I wouldn't stop taking vitamin E, but I would keep to the correct dosage range, which is under 400 international units a day.’
    • ‘In a study of 50 patients with adult-onset diabetes, researchers gave 400 international units of vitamin E and 1,000 milligrams of vitamin C daily for 10 days.’
    • ‘Could it be that you were just using too low a dose of the Vitamin E that 400 international units a day is just not enough?’
    • ‘Half received daily supplements of 500 milligrams of calcium and 700 international units of vitamin D, and half received placebos.’
    • ‘The beneficial amount of vitamin D was 645 international units daily.’
    • ‘Make certain you're getting 200 micrograms of selenium and 400 international units of vitamin E in this pack.’
    • ‘Those getting the most vitamin D from supplements - 400 international units or more a day - were 40 percent less likely to develop MS than those who took no supplements.’
    • ‘For people who are taking 400 international units or more per day, we estimated that they have between a 4 to 6 percent increased mortality.’