Norman Robillard, Ph.D., founder of the Digestive Health Institute and author of the Fast Tract Digestion book series, presents a talk on Digestive Health and You from 1 to 2:30 p.m., April 22 at the Cambridge Senior Center and from 12:30 to 2 p.m., May 21 at the Newton Senior Center. Both talks will be followed by a Q&A session.

The interactive talks will focus on the role of bacteria and healthy food choices for digestive health, drawing from scientific evidence and offering information for making better food choices. Robillard will cover such issues as heartburn, acid reflux, laryngopharyngeal reflux disease, irritable bowel syndrome, celiac and Crohn’s diseases, gastroesophageal reflux disease and diverticulitis.

He’ll also speak about using diet for prevention and overall health, and treating and preventing functional gut disorders with food choices.

Location: The Cambridge Senior Center, 806 Massachusetts Ave., Cambridge. To register, call 617-349-6060. The Newton Senior Center, 345 Walnut St., Newton. Call 617-796-1660 to register. For more information, call 617-596-1486 or visit DigestiveHealthInstitute.org.