WASHINGTON (AP) — Popping calcium and vitamin D pills in hopes of strong bones? Healthy older women shouldn't bother with relatively low-dose dietary supplements, say new recommendations from a government advisory group.

Both nutrients are crucial for healthy bones and specialists advise getting as much as possible from a good diet. The body also makes vitamin D from sunshine. If an older person has a vitamin deficiency or bone-thinning osteoporosis, doctors often prescribe higher-than-normal doses.

But for otherwise healthy postmenopausal women, adding modest supplements to their diet — about 400 international units of D and 1,000 milligrams of calcium — don't prevent broken bones but can increase the risk of kidney stones, the U.S. Preventive Services Task Force said Monday.