In America, use of vitamins, nutritional supplements, and herbs is common, ranging from 10 to 95%. In my practice it is about 50%. But shockingly, a new study http://bit.ly/YVzEAx shows that between 20% to 77% of people who were using complementary or alternative medicines did NOT tell their doctor about which complementary or alternative therapies they were taking. People said they kept this a secret because the doctor never asked, or they were afraid of…