What Can a Psychiatrist Tell Us About Vitamin D?

Winter’s coming, so how much vitamin D do we need? How much time do you have to spend in the sunlight to obtain adequate amounts? How does obesity affect the dosage? How many diseases can be prevented by adequate amounts of this vitamin? And what can a psychiatrist tell us about this vital vitamin? Years ago I reported that Dr. Catharine Gordon, a professor of pediatrics at The Harvard Medical School, tested the vitamin D levels of teenagers 11 to 18 years of age. She found that 14 percent of these adolescents were deficient in vitamin D. Today about 30 percent of adults are low in D.