What is vitamin D?

Vitamin D helps your immune system function effectively, reduces inflammation, and helps your body absorb calcium. Calcium is a mineral that gives strength to your bones and teeth, and helps your nerves and muscles function properly.

Why is vitamin D important?

The teenage years are the most important for bone growth and development. If you don’t get enough vitamin D during your teenage years, you may be at risk for osteoporosis when you get older. Osteoporosis is the development of weak bones that, over time, can break easily.

How much vitamin D do I need?

Both children and adolescents should get at least 600 IU (International Units), of vitamin D each day. Supplements should be taken with food to improve absorption.

Where can I get vitamin D?

Your body can create vitamin D when it is exposed to sunlight. However, sunscreen blocks your skin’s ability to make vitamin D. Given the risk for skin cancer with sun exposure, using sunscreen is advised. Other ways to get vitamin D are through your diet or by taking a vitamin D supplement.

The best food sources of vitamin D are fish such as salmon, tuna, and mackerel, and products fortified with vitamin D such as milk, orange juice, and some yogurts. Although it’s great to get vitamins and minerals from food, taking a vitamin is another way to get the right amount. If you do decide to take a multivitamin supplement, check the label on the bottle and make sure one serving provides at least 600 IU of vitamin D.

Can I get too much vitamin D?

You can’t get too much vitamin D from the sun or from eating certain food. However, taking too much vitamin D as a supplement can be harmful. Research studies have shown that the maximum amount of vitamin D a teen should get is 4000 IU per day, and the minimum is 600 IU per day. More is not always better! Taking too much vitamin D can result in kidney stones.

Below is a table of some healthy foods that contain vitamin D:

Food Serving IUs Vitamin D
Salmon (cooked) 3.5 ounces 518
Shrimp (canned) 3 ounces 152
Total® Cereal 1 cup 133
Fortified Milk 1 cup 116
Fortified Soy Milk 1 cup 104
Fortified Orange Juice 1 cup 100
Raisin Bran® Cereal 1 cup 91
Tuna (canned) 3 ounces 68
Egg (whole) 1 large egg 41
Kellogs® low-fat granola with raisins 2/3 cup 40
Kix® Cereal 1 cup 40
Quaker® instant oatmeal for women 1 packet 154

Is vitamin D deficiency (not enough) a problem for teens?

Yes. Many teens do not get enough vitamin D.

Am I at risk for Vitamin D deficiency (not enough)?

Many people are at risk for vitamin D deficiency. Talk to your health care provider to see if you should have a vitamin D test.


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