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30 years
Dear Doctor, I did recently a blood Test and all results were good but only i have some lack in the vitamin D the result was 10, how many IU i must take thanks in advance, Maia
Jul 10, 2013

Dr. Thierry Yazbek Surgery
For adults with serum 25OHD levels <20 ng/mL (50 nmol/L), we recommend vitamin D repletion.
Many clinicians treat with 50,000 to 100,000 units of vitamin D2 or D3 orally once per week for six to eight weeks, followed by a maintenance dose (the amount of vitamin D needed to maintain optimal serum 25OHD levels, often at least 800 units of vitamin D daily). The maintenance dose should be based on the amount needed to increase serum 25OHD from the initial low level to the target level.
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