Is it possible to take TOO MUCH calcium?

500 mg calcium supplement tablets, with vitami...

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As a chiropractor, patients often ask me bone or joint-related questions. One concern that often comes up is, “Am I taking enough calcium?” or “Am I taking too much?”

For many years, the common public perception was the more calcium you took the better. However, in recent years, increasing evidence indicates that more calcium is not better. Assuming that many women will get about 700 mg a day from dietary sources alone, many women may require no more than an additional 500-600 mg a day from calcium supplements. In contrast, many women are taking a very high dose of calcium, often 1200-1500 mg a day just from the supplements alone, and this could lead to very high total intake. (see full article)

Recommended Daily Amounts of Calcium

Age Male Female Pregnant Lactating
0-6 months* 200mg 200mg
7-12 months* 260mg 260mg
1-3 years 700mg 700mg
4-8 years 1000mg 1000mg
9-13 years 1300mg 1300mg
14-18 years 1300mg 1300mg 1300mg 1300mg
19-50 years 1000mg 1000mg 1000mg 1000mg
51-70 years 1000mg 1200mg
71+ years 1200mg 1200mg

Institute of Medicine of the National Academies (formerly National Academy of Sciences)

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