The millions of people who take calcium supplements to strengthen aging bones and ward off osteoporosis may be putting themselves at increased risk of a heart attack, a new study has found.<div class="feedflare">
<a href="http://rss.cnn.com/~ff/rss/cnn_topstories?a=Lpnpyff2-2A:pTRuTwranJM:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/rss/cnn_topstories?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://rss.cnn.com/~ff/rss/cnn_topstories?a=Lpnpyff2-2A:pTRuTwranJM:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/rss/cnn_topstories?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://rss.cnn.com/~ff/rss/cnn_topstories?a=Lpnpyff2-2A:pTRuTwranJM:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/rss/cnn_topstories?i=Lpnpyff2-2A:pTRuTwranJM:V_sGLiPBpWU" border="0"></img></a> <a href="http://rss.cnn.com/~ff/rss/cnn_topstories?a=Lpnpyff2-2A:pTRuTwranJM:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/rss/cnn_topstories?d=qj6IDK7rITs" border="0"></img></a> <a href="http://rss.cnn.com/~ff/rss/cnn_topstories?a=Lpnpyff2-2A:pTRuTwranJM:gIN9vFwOqvQ"><img src="http://feeds.feedburner.com/~ff/rss/cnn_topstories?i=Lpnpyff2-2A:pTRuTwranJM:gIN9vFwOqvQ" border="0"></img></a>
</div><img src="http://feeds.feedburner.com/~r/rss/cnn_topstories/~4/Lpnpyff2-2A" height="1" width="1"/><br /><br /><a href="http://rss.cnn.com/~r/rss/cnn_topstories/~3/Lpnpyff2-2A/index.html" target="_blank">[More on CNN.com]</a>