People with stomach ulcers can eat many foods without experiencing any problems or worsening of symptoms. Because there are relatively few restrictions, it's easy to follow the Food Guide Pyramid's recommendations for a healthy diet.
Some foods, especially milk and other dairy products such as yogurt and cheese, can help ease the discomfort an ulcer can cause.
Lean meats are preferable to fatty ones.
If you experience symptoms and don't have antacids handy, try drinking a glass of milk to see if it helps ease the discomfort.