Fried food is high in fat and can lead to stomach aches and diarrhea. In addition, fried food has also been associated with acid reflux
Candy, gum, and other sugar-free items with sugar alcohols might induce gas and upset stomach in certain people.
High fructose corn syrup, used in candies and pastries, can induce gas, diarrhea, bloating, and cramps.
Oranges, grapefruits, lemons, and limes are acidic and can cause heartburn.
Peppermint has been known to trigger heartburn and indigestion in some folks
Beans contain oligosaccharides, which are non-digestible, fermentable fibers that may cause gas, abdominal discomfort, and bloating
Cruciferous veggies include broccoli, kale, collards, and cabbage. Bean sugars produce gas, stomach discomfort, and bloating.
Spices relax the sphincter (or valve) between the stomach and esophagus, allowing acidic food to reflux into the esophagus and cause heartburn
Like peppermint and citrus fruit, chocolate can relax the esophageal sphincter, causing heartburn and indigestion.