Optimum dose of vitamin D for disease prevention in older people: BEST-D trial of vitamin D in primary care

ConclusionsAfter accounting for average 70% compliance in long-term trials, doses of 4000 IU vitamin D3 daily may be required to achieve plasma 25(OH)D levels associated with lowest disease risk in observational studies.

http://link.springer.com/10.1007/s00198-016-3833-y

Source: Osteoporosis International - December 15, 2016 Category: Orthopaedics Source Type: research