Do you cough after you eat? If so, it may be a sign. Coughing after you eat may be related to several things. For example, some people cough if they eat a food they’re sensitive to or allergic to. Many people don’t realize that they have such sensitivities. Another common cause is acid-reflux, where the food and stomach acid actually travels back up the esophagus. And for those people who suffer from asthma, some foods contain sulfites, which can trigger an asthma attack. Beer, wine, pickled onions, dried fruit, and soft drinks are just a few of the items asthma patients should avoid. So, if you tend to cough after a meal or during a meal, pay special attention to your diet and talk to your doctor.