Calcium and Vitamin D Pills After Menopause: What the Task Force Found

A calcium and vitamin D tablet is a common addition after menopause, often bought on the strength of a label promising “bone support.” Here is what the U.S. Preventive Services Task Force¹ concluded, who those conclusions don’t cover, and how to get calcium without overdoing it.

What the task force found

In 2018, the task force recommended against daily supplements of 400 IU or less of vitamin D and 1,000 mg or less of calcium to prevent fractures in postmenopausal women living in the community. It said evidence was insufficient to judge higher doses. It also found that combined vitamin D and calcium taken for 4 to 7 years increased the risk of kidney stones.¹

A December 2024 draft update went further, recommending against vitamin D, with or without calcium, to prevent fractures or falls in postmenopausal women.²

Who these conclusions don’t cover

The task force recommendations don’t apply to women who have osteoporosis, a past fracture from bone weakness, vitamin D deficiency, or conditions that affect vitamin D absorption.¹² If your clinician prescribed calcium or vitamin D for one of these reasons, keep following their advice and ask before changing anything.

How much calcium you need

The NIH Office of Dietary Supplements³ recommends 1,200 mg of calcium a day for women 51 and older, from food, drinks and supplements combined. The upper limit for adults 51 and older is 2,000 mg a day.³ Milk, yogurt and cheese are the main food sources for most people in the U.S., and canned fish with bones and some greens add more.³

Add up what you eat before you buy a supplement. You may already be close to 1,200 mg.

If you do take calcium

• Split it. Calcium is absorbed best in doses of 500 mg or less at a time.³
• Match the form to meals. Calcium carbonate absorbs best with food. Calcium citrate absorbs well with or without food.³
• Watch for side effects. Calcium can cause gas, bloating and constipation.³
• Space it from thyroid medicine. Levothyroxine isn’t absorbed well within 4 hours of a calcium supplement.³
• Count antacids. Some antacids contain calcium carbonate, which counts toward your total.³

What to ask about bone health

Whether you need treatment depends on your bone density, fracture risk and history, not a supplement label.

Try: “I’m taking calcium and vitamin D for my bones. Based on my risk and bone density, do I need them, and is there anything else I should do to prevent fractures?”

My Body Changed. Now What? includes a Visit Brief. Use it to list your supplements, doses and bone health questions before your next appointment. See the book.