To maintain healthy bones, women who are postmenopausal needs around 1200 mg of calcium along with adequate vitamin D, a healthy diet with adequate protein and regular weight-bearing exercise. This calcium intake can come from food, supplements or a combination of both. You can get the help of a dietician to understand if you take enough calcium.
You can even calculate it yourself using the calcium calculator (https://www.osteoporosis.foundation/educational-hub/topic/calcium-calculator).
The rest of the calcium can be supplemented with calcium tablets. Around 500 mg of calcium can be used daily in most patients with the intake is low. Some studies have shown a reduction in osteoporotic fractures with calcium.
Author- Dr. Deepa