Calcium after menopause

Our verdict: Not recommended at typical doses specifically for fracture prevention; evidence is insufficient (not proven, not disproven) at higher doses, and supplementation carries a real downside.

Calcium supplements are commonly recommended for bone health as menopause accelerates bone loss (see our bone health guide). The US Preventive Services Task Force (USPSTF) reviewed the trial evidence on this specific question — calcium supplements for fracture prevention — and reached a more cautious conclusion than common advice suggests.

What the USPSTF actually concludes

For postmenopausal women, taking calcium together with vitamin D:

• Recommends against daily supplementation with 1,000mg or less of calcium (combined with 400 IU or less of vitamin D) for fracture prevention — a Grade D recommendation, reflecting moderate certainty of no net benefit.
• Concludes the evidence is insufficient to judge benefits and harms at higher doses.

The tradeoff worth knowing about

This isn't simply "no benefit, no harm, so why not." The USPSTF found adequate evidence that vitamin D and calcium supplementation together increases the risk of kidney stones. That's a real, documented downside to weigh against a fracture-prevention benefit the same review couldn't confirm at typical supplement doses.

What this doesn't mean

This verdict is specifically about supplement pills for fracture prevention. It isn't a recommendation to avoid calcium-rich foods as part of a normal diet, which is a separate nutritional question with its own, uncontroversial rationale. If you're specifically taking a calcium supplement because you believe it protects your bones, that's the claim this verdict addresses directly.

See our companion verdict on vitamin D, since the two are almost always considered together, and our bone health after menopause guide for what does have strong evidence instead — hormone therapy and high-intensity resistance training. Log your current supplements in our private symptom tracker to review with your clinician.