A blood concentration of 50 ng/ml is not a dosage. The conversion for supplements is set at 1 µg = 40 IU. For instance, 25 µg equals 1000 IU. Without knowing the dose-response, which varies from person to person, it is impossible to convert ng/ml to IU or µg directly.
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| 05/26/2025, 8:07 AM | Ng/ml to mcg and iU |
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