Regardless of whether they’re fresh or canned, tomatoes are yet another food that can trigger heartburn. Even though tomatoes are considered a very healthy vegetable, they are naturally high in malic and citric acid as well. As a result, these juicy red veggies cause the stomach to produce high amounts of gastric acid, eventually making their way back into the esophagus and causing heartburn and acid reflux. Fresh and canned tomatoes aren’t the only thing to watch out for, but pasta sauces, condiments such as ketchup and salsa, and any other foods that use tomatoes in their recipe can have the same adverse effect, especially when eaten in excess.
