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Published on: 5/16/2026
Gaining healthy weight during ulcerative colitis (UC) remission requires a modest calorie surplus built from nutrient-dense proteins, easy-to-digest carbohydrates, and healthy fats, eaten in small, frequent meals to protect your gut.
Best foods for UC weight gain include:
Supplement choices, cooking methods, and lifestyle habits also influence your results, so review the complete guide below.
Because unexplained weight changes, fatigue, or digestive symptoms can signal a UC flare or another underlying issue, it's worth understanding what your body is telling you before adjusting your diet. Take a free, instant, online symptom check to clarify your symptoms and confidently plan your next steps.
Reviewed for medical accuracy: 07/09/2026
Gaining weight during a period of ulcerative colitis (UC) remission can feel challenging, but with the right approach, you can rebuild lost muscle, restore energy, and improve your overall well-being. This guide covers practical strategies, nutrient-dense food lists, meal ideas, and lifestyle tips to help you put on healthy pounds. Always remember to speak to a doctor about any serious or life-threatening concerns, and if you're experiencing new or changing symptoms, Ubie's free AI Symptom Checker can help you understand what might be happening and guide your next steps.
During remission, inflammation is low, symptoms are reduced, and you have a window to rebuild. The goal is to add healthy calories without triggering your gut.
Calorie Surplus
Aim to eat 250–500 calories above your maintenance level each day. Track intake with an app or food journal.
Nutrient Density
Choose foods rich in protein, healthy fats, and complex carbohydrates to maximize calories and promote healing.
Small, Frequent Meals
Five to six smaller meals or snacks can be easier on your gut than three large ones.
Gentle on the Gut
Focus on well-cooked, lower-fiber options if high-fiber foods still cause discomfort.
Stay Hydrated
Dehydration can worsen symptoms. Sip water, electrolyte drinks, or diluted fruit juices throughout the day.
Breakfast
Mid-Morning Snack
Lunch
Afternoon Snack
Dinner
Evening Snack
If you experience any concerning symptoms like persistent vomiting, severe abdominal pain, sudden weight loss, high fever, bloody diarrhea, or signs of dehydration, check your symptoms with Ubie's AI-powered assessment tool to better understand what's happening and whether you need urgent care:
Always talk with a doctor before starting new supplements or making major dietary changes. For any life-threatening or serious symptoms, seek medical attention right away.
By focusing on calorie-dense, nutrient-rich foods, spreading meals throughout the day, and paying attention to how your body responds, you can successfully gain weight and rebuild strength in UC remission. Speak to a doctor for personalized guidance and to ensure every step you take supports your long-term health.
(References)
* Scharl M, Rogler G. Nutritional management in inflammatory bowel disease: evidence-based recommendations. *Clin Gastroenterol Hepatol*. 2020 Jun;18(7):1448-1461.e4. doi: 10.1016/j.cgh.2019.10.027. PMID: 32066898.
* Wahed M, Ghia JE, Seidman EG, et al. Dietary strategies for weight loss and weight gain in inflammatory bowel disease. *Curr Opin Clin Nutr Metab Care*. 2021 May 1;24(3):235-241. doi: 10.1097/MCO.0000000000000735. PMID: 33583262.
* Larussa T, Leone I, Comparato T, et al. Optimizing nutritional status in inflammatory bowel disease. *Ther Adv Gastroenterol*. 2019 Jul 12;12:1756284819859238. doi: 10.1177/1756284819859238. PMID: 31333140.
* Sheng B, Wang Z, Ding W, et al. Nutritional status and dietary intake of patients with inflammatory bowel disease in clinical remission: a systematic review. *BMC Gastroenterol*. 2020 Feb 3;20(1):31. doi: 10.1186/s12876-020-1178-0. PMID: 32014101.
* Forbes A, Murray E, Nightingale J. Nutritional management of inflammatory bowel disease. *Clin Med (Lond)*. 2019 May;19(3):227-234. doi: 10.7861/clinmedicine.19-3-227. PMID: 31092520.
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