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Wikipedia says 40 IU of vitamin D is equal to 1 microgram, which would make 100 micrograms equal to 4000 IU [1]. [1] https://en.wikipedia.org/wiki/Internationa
by 0x64 6y ago
Wikipedia says 40 IU of vitamin D is equal to 1 microgram, which would make 100 micrograms equal to 4000 IU [1].
[1] https://en.wikipedia.org/wiki/International_unit https://en.wikipedia.org/wiki/International_unit