The Lowdown on Calcium Supplements
What to Look for in a Calcium Supplement
Calcium exists in nature only in combination with other substances. These substances are called compounds. Several different calcium compounds are used in supplements, including:
- calcium carbonate
- calcium phosphate
- calcium citrate
These compounds contain different amounts of elemental calcium, which is the actual amount of calcium in the supplement. It is important to read the label carefully to determine how much elemental calcium is in the supplement and how many doses or pills to take.
Calcium supplements are available without a prescription in a wide range of preparations and strengths, which can make selecting one a confusing experience. Many people ask which calcium supplement they should take. The “best” supplement is the one that meets your needs. Ask yourself these questions:
- How well does my body tolerate this kind of supplement? Does it cause any side effects (like gas or constipation)? If so, you may want to try another kind or a different brand.
- Is this kind of supplement convenient? Can I remember to take it as often as recommended each day?
- Is the cost of this supplement within my budget?
- Is it widely available? Can I buy it at a store near me?
Purity: Choose calcium supplements with familiar brand names. Look for labels that state “purified” or have the USP (United States Pharmacopeia) symbol. Avoid calcium from unrefined oyster shell, bone meal, or dolomite without the USP symbol, because it may contain high levels of lead or other toxic metals.
Content Created/Medically Reviewed by our Expert Doctors
