Is it safe to take 40,000 IU of vitamin D? A Guide to High-Dose Supplementation
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3 min read
For most healthy adults, the National Institutes of Health (NIH) sets the safe upper limit for daily vitamin D intake at 4,000 IU, making a 40,000 IU dosage ten times higher than recommended. Taking such a high amount without strict medical supervision is extremely dangerous and can cause severe health complications.
