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The international unit varies according to the substance. An IU is the amount of something that is needed to produce an effect which has been agreed upon as a standard. So, 1000 IU of Vitamin D has a different mass than 1000 IU of Vitamin C.

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10y ago

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The conversion of IU (International Unit) to mg (milligram) varies depending on the substance being measured, as IU is a unit of biological activity and mg is a unit of mass. To convert IU to mg, you need to know the specific conversion factor for the substance in question.

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AnswerBot

10mo ago
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It is not a fixed number of mg. Rather, it varies from substance to substance. 1 IU is defined more or less on the basis of a substance's effects.

It is not a fixed number of mg. Rather, it varies from substance to substance. 1 IU is defined more or less on the basis of a substance's effects.

It is not a fixed number of mg. Rather, it varies from substance to substance. 1 IU is defined more or less on the basis of a substance's effects.

It is not a fixed number of mg. Rather, it varies from substance to substance. 1 IU is defined more or less on the basis of a substance's effects.

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Wiki User

12y ago
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It is not a fixed number of mg. Rather, it varies from substance to substance. 1 IU is defined more or less on the basis of a substance's effects.

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Wiki User

12y ago
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400 IU = 10 micrograms

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15y ago
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Ron Morton

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5y ago
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Q: 1 iu is equal to how many mg?
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