Key Points You Need to Know about Vitamin D - dummies

Key Points You Need to Know about Vitamin D

By Alan L. Rubin

Part of Vitamin D For Dummies Cheat Sheet

Even as researchers continue to discover how vitamin D can protect your health, a lot of misinformation still surrounds this amazing vitamin. Here are some of the key points you need to know to understand the role of vitamin D in your health.

  • You can make vitamin D in your skin when you’re exposed to UVB light from the sun.

  • People who don’t get enough sun exposure need vitamin D in their diet.

  • Whether you get vitamin D from sun, diet, or supplements, your body turns vitamin D into a hormone called 1,25 dihydroxyvitamin D (or calcitriol). This is the form of vitamin D that directly affects your health.

  • Many people don’t get enough UVB light to make vitamin D in their skin.

  • It’s hard to get enough vitamin D from food alone.

  • You can find out if you have enough vitamin D in your system by getting a blood test for a form of vitamin D called 25-hydroxyvitamin D.

  • Vitamin D supplements are safer than people used to think.

  • The recommendations for vitamin D intake were set to help you protect your bones.

  • Breast milk generally doesn’t provide enough vitamin D to babies.

  • Vitamin D may be important for more than just bone health. New evidence suggests it may strengthen your immune system, prevent cancer, and stop other chronic diseases.

  • The proposed new roles for vitamin D and health are still being tested.