Monday, February 21, 2011

Calcium


What is it?  Calcium is a mineral, and a very important component of a healthy diet.  Nearly all the calcium in the body is stored in the bones and teeth.  

What does it do?  Calcium supports the structure of the bones and teeth, but it also has other functions.  Calcium also helps with muscle contraction, helps blood vessels to expand and contract, and helps to send signals through the nervous system.

Why is it important?  Without adequate calcium from the diet, calcium can be pulled out of storage from the bones.  This could cause them to weaken, which is why it is so important to consume enough calcium from foods, and supplement as necessary to meet needs.  

Where is it found?  The richest sources of calcium are dairy products such as milk, yogurt and cottage cheese.  Some leafy green vegetables, such as spinach, seaweed and kale also provide calcium.  Tofu and beans can also contribute some calcium to the diet.  Many foods are now calcium-fortified such as soy milks, some fruit juices, breakfast cereals, and even some breads.

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