"A" is for Airway "B" is for Breast Cancer "C" is for cysts "D" is for Vitamin D "E" is for Eczema "F" is for Fungus "G" is for Gynecology Learn more about Dr. Jennifer Ashton here. Do you have a question for Dr. Jennifer Ashton? Submit your questions for the doctor to answer and we will post her responses online to share.

Health Tip, August 12, 2009 "D" is for Vitamin D! (Communication Manager Jamie Watkins recently interviewed Dr. Jennifer Ashton about several very important health issues pertaining to girls and women.) Question: Why is getting enough Vitamin D important? Answer: Vitamin D is a fat-soluble vitamin that is important in the function of all cells in the body. It is particularly important for our immune system and for our skeletal system (bone health). Question: What foods contain Vitamin D? Answer: There are some foods that have been 'fortified' with Vitamin D. This means that Vitamin D has been added. These include orange juice, milk, cereals, some cheeses and fish (which has Vitamin D naturally). Question: Is there any danger of getting too much Vitamin D? Answer: Sure! That is always a danger with ANY vitamin, but the chances of getting too much D naturally from the sun is impossible (since our bodies breakdown excess D that we get from the sun). If we get Vitamin D via supplement form, taking very high doses can be dangerous, so always check with your doctor before taking any supplements. Question: What does your body need Vitamin D for? Answer: Everything from healthy immune system, to good skin, to good brain function, to strong bones. Question: How would you know if you are not getting enough Vitamin D? Answer: Your doctor can check your D level with a simple blood test. Studies have shown that almost 50% (half) of teenage girls living in the northeast part of the US have low D levels! Question: I heard you can get Vitamin D for the being out in the sun. What about skin damage or skin cancer? Answer: Luckily, you do not need to go into the sun to get D! We can get enough from our food and, if necessary, a D supplement. Natural sunlight is OK in limited amounts, but over time can lead to skin damage and even skin cancer. Wishing you good health, Dr. Jennifer Ashton, M.D., F.A.C.O.G.