Muslims with stomach ulcers can fast safely during Ramadan by avoiding spicy, acidic, and processed foods while consuming slow-digesting, nutrient-rich meals. Staying hydrated, eating in moderation, and following dietary guidelines help maintain digestive health and prevent discomfort.

There is no general guideline for how much food to consume since everyone's calorie demands vary. Generally, 500–600 calories should be consumed at sehri. Whether you consume 400 or 1,000 calories at sehri, your body will feel hungry after 6–8 hours, so there is no need to overeat in the morning.