? ~50,000 IU/wk: I usually wait ~3 months before rechecking d3 concentration, it takes time to change. With osteoporosis, d3 conc. In at least the 70-80 upper normal, range probably desirable (assuming no hx ca renal stones). Also ↑ foods high in ca+2 (e.g. Dairy, cheese), possibly citracal for additional ca+2 may help. Depending on severity, consider recheck lunar DEXA at 1 year intervals. Many otc d3 ↓ efficacy.
Answered 2/19/2015
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