Foods to avoid for gastric ulcers include spicy and stimulating foods such as chili peppers, garlic, onions, leeks, ginger, and alcoholic beverages. Seasonings like cinnamon, star anise, black pepper, and fennel should also be avoided. Acidic foods such as lemons, limes, and green apples are not recommended, as well as foods that can cause bloating like soybeans and peanuts. Additionally, cold foods such as ice water and frozen fruits, as well as fried and grilled foods like street food and barbecues, should be avoided. It is also advisable to limit intake of foods high in roughage, such as corn, buckwheat, and celery.