50 000 IU is a lot, but they studied different dosages and found that the higher the dosage, the lower the risk for infection.
But even lower dosages give a good effect too, much better than nothing at all.
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50 000 IU is a lot, but they studied different dosages and found that the higher the dosage, the lower the risk for infection.
But even lower dosages give a good effect too, much better than nothing at all.