Is 50 mcg the same as 1000 IU? Understanding Vitamin Dosage Units
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4 min read
For Vitamin D, 1,000 International Units (IU) is actually equivalent to just 25 micrograms (mcg), which means 50 mcg is not the same as 1000 IU. This common mix-up highlights the importance of understanding different measurement units on supplement labels to ensure proper and safe dosing.