Dietary and lifestyle choices may contribute to Gastroesophageal reflux disease (GERD). Certain foods and beverages, including chocolate, peppermint, fried or fatty foods, coffee, or alcoholic beverages, may trigger reflux and heartburn. Studies show that cigarette smoking relaxes the lower esophageal sphincter (LES). Obesity and pregnancy can also play a role in Gastroesophageal reflux disease (GERD) symptoms.