this post was submitted on 06 Jun 2026
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Vitamin D and calcium may not support bone health as much as thought: study (globalnews.ca)
submitted 2 weeks ago by otter@piefed.ca to c/publichealth@mander.xyz
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Seventy-three per cent of participants were 'not at high risk of fractures or falls,' with calcium, vitamin D or combined supplements having 'little to no effect on fractures.'

The study: https://www.bmj.com/content/393/bmj-2025-088050

Results This review included 69 trials involving 153โ€‰902 participants. Participants in most of the trials were community dwelling (87%) and not at high risk of fractures or falls (73%). For the primary outcome of any fracture, little to no effect was found from use of calcium supplements (11 trials, 9067 participants; risk ratio 0.91, 95% confidence interval 0.81 to 1.01; moderate certainty), vitamin D supplements (36 trials, 92โ€‰045 participants; 1.00, 0.95 to 1.06; high certainty), or combined supplementation (15 trials, 51โ€‰126 participants; 0.91, 0.84 to 0.99; high certainty). Calcium, vitamin D, or combined supplementation appeared to have little to no effect on other fracture and fall outcomes, based largely on moderate to high certainty of evidence. The findings remained robust after an extensive exploration of heterogeneity across multiple subgroup analyses. Evidence for high risk patients or those requiring residential care was limited for many outcomes for calcium monotherapy and for combined supplementation.

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[โ€“] HubertManne@piefed.social 2 points 2 weeks ago

yeah also you get it from leafy greens which is something people with poor diets often are not eating.