As the darkness and chill of winter creep closer, many of us mourn the hours of daylight for reasons other than aesthetic comfort. Sunlight is the main source of vitamin D and with the increased awareness about skin cancer prevention and a lack of outdoor activity, many Americans have lower than healthy levels of this vital nutrient. Among its numerous roles in the body, vitamin D enhances calcium absorption, improves mood, strengthens the immune response and may lower the risk of cancer. Vitamin D supplementation may also reduce mortality rates according to a recent review study. A simple blood test can determine if an individual is vitamin D deficient and guide appropriate supplementation. Vitamin D3 is the most bioavailable form of the nutrient and most multi-vitamins do not have an adequate amount to correct deficiencies. Supplementation doses may range from 800 to 2000 IU per day. Food sources of vitamin D include cod liver oil, eggs, fortified dairy products and fish. Ask Dr. Emily about how vitamin D may best benefit you this winter!



