endocrinology
Bone health

Higher doses of vitamin D have no benefit and may worsen bone health

Concerns have been raised about higher dose supplements of vitamin D after a Canadian study found users had lower bone mineral density (BMD) than people who took standard 400 IU daily doses. A double-blind, randomised clinical trial conducted at a single Canadian centre compared the effects of daily doses of 400 IU, 4000 IU and ...

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