4 ms·
ng? as in nanograms? 1000 nanogram = 1 microgram (mcg), 40 IU = 1 mcg. I take 5000 IU a day, or 125 mcg.
by DiabloD3 10y ago
ng? as in nanograms? 1000 nanogram = 1 microgram (mcg), 40 IU = 1 mcg.
I take 5000 IU a day, or 125 mcg.
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