Micronutrients & recovery
There is insufficient evidence to determine the benefit of vitamin D, calcium, or combined supplementation for preventing fractures in community-dwelling men and premenopausal women.
For men and premenopausal women, current research does not provide enough information to say whether vitamin D and calcium supplements prevent fractures. Because the evidence is insufficient and there are known risks (like kidney stones), these supplements are not recommended for primary fracture prevention in these groups.
The USPSTF found inadequate evidence to estimate the benefits of vitamin D, calcium, or combined supplementation to prevent fractures in community-dwelling men and premenopausal women.
Why this rating
Evidence is described as 'inadequate' or 'lacking', preventing a definitive conclusion.
Source
Vitamin D, Calcium, or Combined Supplementation for the Primary Prevention of Fractures in Community-Dwelling Adults
US Preventive Services Task Force et al. · JAMA · 2018
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