Ulcerative colitis nutrition therapy

Ulcerative colitis does not require one universal diet. Food choices may need to change temporarily during a flare, but removing many foods without guidance can worsen low intake and make meals stressful. A dietitian can consider symptoms, stool frequency, appetite, weight change, food tolerance and any deficiencies. The aim is a nourishing pattern that you can maintain, not a list of forbidden foods.

Some people tolerate smaller meals, softer foods or less fibre during active symptoms, while others do not need these changes. A food and symptom diary can show whether a particular food repeatedly aggravates discomfort. Nutrition support complements care for [Ulcerative Colitis](/conditions/ulcerative-colitis/); it does not replace prescribed anti-inflammatory or other treatment.

Eat regularly and choose foods that provide energy and protein in portions you can manage. Drink steadily, particularly when diarrhoea is present, and ask a clinician what rehydration option suits you. Avoid making several major exclusions at once. Discuss iron, vitamin or mineral supplements before starting them, because the right product and dose depend on your symptoms and test results.

Book a [GP Consultation](/treatments/consultations-and-assessment/gp-consultation/) if eating becomes difficult, diarrhoea persists, or you are losing weight. Bring your diary and a list of supplements, medicines and foods you have stopped.

Seek urgent help if you cannot keep fluids down, feel faint, become unusually drowsy, pass very little urine, or have severe abdominal pain or heavy rectal bleeding. Prompt assessment is also needed for rapidly worsening diarrhoea, fever with a marked deterioration, or inability to eat for a prolonged period. These problems can cause dehydration or nutritional compromise and should not be managed with diet changes alone.

Ask: Do I need a dietitian? Which foods should I trial, and for how long? Should I have blood tests for deficiency? What should I drink during diarrhoea? How will we protect nutrition while treating inflammation?