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Your Body on Calcium
This important mineral is responsible for strong bones . . . and much more.
Did you know that right now, while you are working hard in school, your bones are also working hard? They’re becoming thicker and stronger. In fact, by the time you’re 17, your bones will have grown 75 percent of their total mass. That’s why it’s so important for you to treat them right. One way to do that is to get enough calcium in your diet. This mineral plays a huge role in keeping your bones healthy and strong. Your muscles, kidneys, and blood also all rely on calcium to work properly. Learn how this essential mineral keeps you strong, and how to make sure you’re getting enough of it.
True or false? You have to eat dairy products to get enough calcium.
True
False
False! While dairy products like milk and cheese are excellent sources of calcium, it’s also in white beans, spinach, broccoli, cabbage,and calcium-fortified orange juice and cereal.
True or false? Most teens don’t get enough calcium in their diets.
True! Studies have found that 9 out of 10 teen girls and 7 out of 10 teen boys don’t get enough calcium in their diets.
During your teen years, you should aim for 1,300 milligrams of calcium-rich foods per day. You could meet that requirement with one 8 ounce glass of milk, one bowl of calcium-fortified cereal, 2 slices of cheddar or swiss cheese, and one cup of broccoli.
Muscles
Calcium helps send nerve impulses to your muscle fibers and plays an important role in the contractions that make your muscles move.
Teeth
Calcium strengthens your enamel, the hard coating that protects your teeth from decay.
Blood
Your blood cells need calcium to flow throughout the body. Your blood also needs calcium for clotting, which prevents excess bleeding.
Skeleton
Your body stores 99 percent of your calcium in your bones. If your diet lacks calcium, your body will pull calcium from your bones, making them weak and at risk for breaks as you grow.
Kidneys
Studies have found that eating calcium-rich foods lowers your risk of kidney stones, a painful condition that can require surgery.
What’s your favorite source of calcium?
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