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Calcium, D, & diabetes.

Calcium and vitamin D supplements may lower the risk of diabetes, says a study that tracked 80,000 women for 20 years.

Women who consumed the most calcium (more than 500 mg a day) from supplements had a 20 percent lower risk of diabetes than those who consumed the least (250 mg a day or less). Women who consumed the most vitamin D from supplements (more than 400 IU a day) had a 13 percent lower risk of diabetes than those who consumed the least (less than 100 IU a day).

It's not clear why a lower risk of diabetes was linked only to calcium and vitamin D from supplements, not food. People who take those supplements may do other things--like exercise or stay trim--that lower their risk, but the researchers tried to eliminate those "confounders."

What to do: Until the link with diabetes is clearer, it's worth taking enough calcium and vitamin D to protect your bones.

If you're 50 or younger, shoot for 1,000 mg a day of calcium and 400 IU a day of vitamin D (from food and supplements). If you're over 50, increase the calcium to 1,200 mg. If you're over 70, boost the vitamin D to 600 IU.

Diabetes Care 29: 650, 2006.
COPYRIGHT 2006 Center for Science in the Public Interest
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2006, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Title Annotation:QUICK STUDIES
Publication:Nutrition Action Healthletter
Article Type:Brief article
Date:May 1, 2006
Words:211
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