Dear Pharmacist: I’m concerned about my bone density because I was told I have osteopenia. Are all calcium supplements the same? Do you have other recommendations? — A.F., New York
Article by Suzy Cohen
Dear A.F.: Osteopenia, or lower-than-normal bonedensity, is frequently found in post-menopausal women but can affect men and women of all ages. In the past few years, some questionable research suggested a connection between calcium supplements and atherosclerosis. But in November, research was presented showing no connection between calcium supplements and coronary artery calcification.
If your doctor suggests calcium supplements, here’s some information:
Calcium carbonate. The least expensive form of calcium to manufacture, calcium carbonate requires lots of stomach acid to digest, so very little calcium goes to your bones, where needed. Because it stays in the gut, you will find this compound also sold as Tums and Rolaids, two products used to neutralize acid (not for bone growth).
Calcium citrate. The easiest form of calcium to find, calcium citrate is absorbed about as well as calcium carbonate but requires less stomach acid to digest, so it can be taken with or without food. This type of calcium can sometimes cause headaches. There are many brands for this.
Tricalcium phosphate. Easy to absorb, this is a combination of calcium and phosphorus, which your bones (and body) need as well. Nature Made offers adult gummies with this type of calcium.
Calcium aspartate or calcium gluconate. These intelligent forms of calcium offer your body aspartate or gluconate, which is used in other metabolic pathways to produce energy. Sometimes this bioavailable form of calcium is combined with vitamin D, magnesium and/or zinc.
Calcium collagen chelate. Minerals that are ingested as chelates, or organic salts, offer goodabsorption and that means less tummy upset. Life Extension and Swanson brands both make this.
Calcium as Microcrystalline Hydroxyapatite (MCHC). This easily absorbed form of calcium is derived from freeze-dried calf bone. This provides other bone-builders like phosphorus, magnesium, zinc and chromium. Brands include Solaray and Xymogen.
For people who don’t drink milk, Hawaiian Spirulina tablets may help. It actually contains 300 percent more calcium than whole milk, plus other minerals. Remember, minerals like calcium are best absorbed when taken in combination with other minerals like strontium, magnesium and vitamin D.
Other important factors in bone health include adequate levels of vitamin K2, which is involved in clotting. And strontium. It has a twofold effect on osteoporosis, meaning it prevents bone breakdown while also stimulating new bone growth.
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