Find the conversion factor for vitamin A ( retinol ): 3.33 IU per mcg. Make use of a simple formula: Amount in IU = Amount in mcg Γ 3.33 IU per mcg. That's it! You're good to go. π. Also, you can turn IU to mg by choosing the equation: Amount of mg = Amount of IU Γ 0.0003.
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