Excessive consumption of certain foods can lead to acid and acidity, causing discomfort and a burning sensation in the chest. Citrus fruits like oranges and tomatoes, as well as spicy foods like chili peppers and onions, are highly acidic and may trigger stomach acid. Fried and fatty foods allow stomach acid to flow back into the esophagus, while chocolate and caffeinated beverages can raise stomach acid levels. Carbonated drinks and mint, despite their soothing properties, can also contribute to acid and acidity. Additionally, excessive consumption of red wine and processed foods with preservatives and salt should be avoided to prevent acid-related discomfort.