This new column starts next month written by Dr. David E. Trachtenbarg, M.D., a family physician at UnityPoint Health Methodist-Proctor, clinical professor at University of Illinois College of Medicine at Peoria and medical director for the Diabetes Care Center in Peoria. Dr. Trachtenbarg will provide scientific answers to readers’ medical questions. Send questions to communityword@yahoo.com. Please write “Question for What’s the Evidence?” in the subject line.