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Here, registered dietitians recommend the best calcium supplements for bone health and offer expert advice on who needs a calcium supplement and why.
[34] [35] Calcium carbonate as a calcium supplement source has several benefits compared to other forms like calcium citrate, lactate, or gluconate, because of highest content of elemental calcium by weight (40%), providing more calcium per dose compared to other forms. It is the least expensive form of calcium, making it a cost-effective ...
A ½-cup serving of firm tofu in calcium solution contains a whopping 861 milligrams of calcium—making it an excellent source—along with 22 grams of protein.
Calcium and vitamin D supplements are often recommended for postmenopausal women to prevent bone loss. New research shows that it may do even more, reducing the risk of cancer.
Natural calcium is a mixture of five stable isotopes (40 Ca, 42 Ca, 43 Ca, 44 Ca, and 46 Ca) and one isotope with a half-life so long that it is for all practical purposes stable (48 Ca, with a half-life of about 4.3 × 10 19 years). Calcium is the first (lightest) element to have six naturally occurring isotopes. [14]
Dietary sources of calcium include dairy products, leafy greens, legumes, and beans. [137] There has been conflicting evidence about whether or not dairy is an adequate source of calcium to prevent fractures. The National Academy of Sciences recommends 1,000 mg of calcium for those aged 19–50, and 1,200 mg for those aged 50 and above. [138]