People with stomach ulcers can eat most foods without problem, including soup, unless the soup is tomato-based and includes spicy ingredients, recommends About.com. Cream based soups are not recommended. Soups with low-fat ingredients are ideal for people suffering from a stomach ulcer.
Individuals with a stomach ulcer should avoid consuming any type of food, including soup, three hours or less before bedtime, warns About.com. The recommended diet for a patient with a stomach ulcer includes foods rich in fiber, especially vegetables and fruit. Patients should also eat smaller meals more frequently throughout the day and chew food slowly to help with digestion.