what is vitamin  d  good  for
Vitamin D is essential for bone health. Recent research suggests it may have other benefits, too, such as protecting against colds and fighting depression. The good news is that most people get enough vitamin D, according to the Institute of Medicine (IOM). However, if you don't spend enough time in the sun or if your body has trouble absorbing the vitamin, you may not get enough. Here are 12 ways to ensure adequate intake. Next: Sunlight.