Do only american foods like hot dogs and chili cause heartburn?

Don't eat out a lot? Have you never developed gerd from mexican, italian, or french food? The central theme in avoiding spicy, greasy food, mints, alcohol, tobacco, chocolate, tomato-based products, caffeinated & fizzy drinks is to reduce stomach volume and minimize relaxation of the lower esophageal sphincter. Regardless of the nationality of food, avoid eating before bedtime. Losing weight is often helpful too.