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A member asked:
Taking 1*400iu/day (from 1 multi-vitamin) vs 1*2000iu/week (from 1 vitamin d3 supplement) does it make any different in utilization ?
A doctor has provided 1 answer
No: However I have found that 2000 units is the most frequently effective dose.
Answered 4/3/2019
5.6k views
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