Calcium and Vitamin D: Do They Really Help Prevent Fractures?

Dr. Kumar’s Take:

This large clinical trial tested whether calcium and vitamin D supplements could help prevent hip and other fractures in healthy postmenopausal women. The results? Slightly better bone density and possibly fewer hip fractures — but no strong protection overall. Supplements helped most in older women who stuck with the treatment. On the flip side, there was a higher risk of kidney stones.

If you’re over 60, especially with low calcium or vitamin D, supplements may help your bones. But don’t expect magic. Diet, weight-bearing exercise, and avoiding smoking and excess alcohol are just as important. What this study didn’t look at was Vitamin K2. Vitmain K2 and Vitamin D are synergistic in their ability to promote bone density.

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Can Vitamin D and Calcium Help Prevent Type 2 Diabetes?

Dr. Kumar’s Take:

This major review looked at whether vitamin D and calcium could help prevent or manage type 2 diabetes. The results are promising: people with higher vitamin D and calcium levels were less likely to have or develop diabetes, and supplementation helped in some high-risk groups. However, results from intervention trials were mixed and mostly short-term. Still, ensuring adequate intake of both nutrients—especially for those at risk—might be a smart, low-cost step toward better glucose control.

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