Home > Gastroenterology > Acid Indigestion Causes Get the Flash Player to see this player. Rate: (Click the stars to rate) Published on Jan 14, 2011 by LiverDoc, Views: 5730 Acid indigestion is most commonly caused by foods, such as spicy foods and alcohol, although weight gain can also be a factor. Learn about medications that are prescribed for acid indigestion with help from a gastroenterologist in this free video on acid indigestion.