Hiatal hernia conditions are created when the stomach pushes up through the food tube. Heartburn, increased acid and sometimes pain are associated with the condition, according to the National Digestive Disease Information Clearinghouse. Mayo Clinic reports that many of the related side effects are lessened by avoiding foods that trigger acid creation.
Fried foods and foods with a high fat content contribute to stomach acid aggravating a hiatal hernia condition by creating heartburn, according to the American Liver Society. Avoiding fried foods will help in containing heartburn.
Fast foods high in fat, such as beef products and cheeses, also push acid through the hernia into the food tube. The American Liver Society recommends carefully selecting from fast-food menus to avoid fatty foods.
Carbonation can cause stomach acid, especially cola drinks with caffeine, according to the American Liver Society. Water and non-carbonated juices--with the exception of orange juice--would be a better choice.
Foods that use garlic and onions for flavoring, including chili, pizza and pasta sauces, should be avoided. Mint flavorings and tangy citrus-based dressings contribute to increased stomach acids.
Eating habits are important for those with hiatal hernias because proper foods might cause problems when eaten before bedtime or before work that requires the body to lift heavy objects. Eating too much food at once increases the chances of pushing acid into the food pipe, according to Mayo Clinic.