You want to avoid foods that contain a high amount of acid in order to reduce acid reflux attacks. Examples of foods that are known to have a high acidic content are grapefruit, tomatoes, and pineapple. If you do have a history of issues after eating these foods, it may be best to avoid eating them late at night, or entirely.
Nearly everyone has a specific trigger food, which is prone to cause reflux. Find out what these triggers are for you and reduce your consumption. Some of the foods you should eliminate from your diet include carbonated beverages, fried foods, high fat foods, fruit juices, tomato sauces and beverages, coffee, or any hot beverage.