A member asked:

The recommended dosage of vitamin d is kept at 400-600 and many seems to recommend more than 1000iu/day ? why such a different ?

4 doctors weighed in across 2 answers
Dr. Fred Harvey answered

Specializes in Geriatrics

Old ideas die hard: Current clinical data suggest that 2000 iu is probably the best daily dose.

Answered 10/6/2012

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Dr. Quang Nguyen answered

Specializes in Endocrinology

Individual: The 400-600 is for normal people. If your vitamin d is low, you will need more to replace it.

Answered 5/1/2019

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