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Published on: 5/16/2026

How to Gain Weight During a UC Remission: Important Food List

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:

  • Lean meats and fish
  • Full-fat dairy (if tolerated)
  • Refined grains like white rice and sourdough
  • Starchy vegetables such as potatoes and squash
  • Healthy oils, nut butters, and avocados
  • Nutrient-dense smoothies

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

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Explanation

How to Gain Weight with Ulcerative Colitis During Remission: Important Food List

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.

1. Why Weight Gain Is Hard with UC

  • Chronic inflammation can damage the lining of your colon, leading to nutrient malabsorption.
  • Frequent flares often force dietary restrictions that cut out calorie-dense foods.
  • Appetite may be reduced by abdominal pain, diarrhea, or nausea.
  • Corticosteroids—commonly used in flares—can both increase appetite and cause muscle breakdown when stopped.

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.

2. Core Principles for Healthy Weight Gain

  1. Calorie Surplus
    Aim to eat 250–500 calories above your maintenance level each day. Track intake with an app or food journal.

  2. Nutrient Density
    Choose foods rich in protein, healthy fats, and complex carbohydrates to maximize calories and promote healing.

  3. Small, Frequent Meals
    Five to six smaller meals or snacks can be easier on your gut than three large ones.

  4. Gentle on the Gut
    Focus on well-cooked, lower-fiber options if high-fiber foods still cause discomfort.

  5. Stay Hydrated
    Dehydration can worsen symptoms. Sip water, electrolyte drinks, or diluted fruit juices throughout the day.

3. Key Nutrients and Food Categories

Protein for Muscle Repair and Growth

  • Lean animal proteins: chicken, turkey, lean beef
  • Fish: salmon, tuna, sardines (rich in omega-3s)
  • Eggs: whole eggs or egg whites if cholesterol is a concern
  • Dairy: Greek yogurt, cottage cheese, kefir (if tolerated)
  • Plant proteins: tofu, tempeh, well-cooked legumes (use in small amounts if fiber is an issue)
  • Protein powders: whey isolate, pea protein, rice protein—blend into smoothies

Carbohydrates for Energy and Calories

  • Refined grains (easier to digest in remission): white rice, white bread, plain bagels
  • Complex carbs: oatmeal, quinoa, sweet potatoes (well-cooked)
  • Pasta and noodles: rice noodles, wheat pasta, egg noodles
  • Starchy vegetables: potatoes, winter squash (pumpkin, butternut)

Healthy Fats for Calorie Density

  • Oils: olive oil, avocado oil, coconut oil (drizzle on veggies or blend into smoothies)
  • Avocado: add to sandwiches, salads, or smoothies
  • Nut butters: peanut, almond, cashew—spread on toast or mix into oatmeal
  • Nuts and seeds: well-chopped or nut powders if large pieces irritate

4. Important Food List

Proteins

  • Chicken breast or thigh (slow-cooked or baked)
  • Canned tuna or salmon (in water or olive oil)
  • Eggs (scrambled, omelets with cheese)
  • Greek yogurt (full-fat)
  • Protein shakes with added nut butter and fruit

Carbohydrates

  • White rice bowls with avocado and steamed chicken
  • Oatmeal topped with honey, banana slices, and nut butter
  • Mashed potatoes with butter or olive oil
  • Smoothies with bananas, oats, protein powder, and yogurt

Fats & Oils

  • Homemade trail mix: chopped nuts, seeds, dried fruit
  • Smoothies enriched with coconut oil or heavy cream
  • Avocado toast on white or whole-grain bread (as tolerated)

Snacks & Extras

  • Hummus with soft pita or low-fiber crackers
  • Cheese cubes or string cheese
  • Full-fat cottage cheese with fruit preserves
  • Nut butter packets for on-the-go calories

5. Sample Meal and Snack Ideas

Breakfast

  • Spinach-free omelet with cheese, served with white toast spread with peanut butter
  • Oatmeal cooked in whole milk, topped with banana and almond butter

Mid-Morning Snack

  • Smoothie: Greek yogurt, protein powder, frozen berries, a spoonful of coconut oil

Lunch

  • Rice bowl: white rice, shredded chicken, avocado, olive oil drizzle
  • Cottage cheese with soft fruit (peaches, pears)

Afternoon Snack

  • Whole-grain (or white) tortilla with hummus and sliced turkey
  • Trail mix and a small protein shake

Dinner

  • Baked salmon, mashed sweet potatoes with butter, steamed zucchini
  • Pasta with olive oil, grated Parmesan, and roasted chicken

Evening Snack

  • Full-fat yogurt with honey and a sprinkle of chopped nuts
  • Glass of milk or dairy-free alternative enriched with protein powder

6. Tips to Improve Absorption and Tolerance

  • Chew thoroughly and eat slowly to reduce bloating.
  • Cook vegetables until soft; peel skins if needed.
  • Introduce high-fiber or gas-forming foods (like beans or raw cruciferous veggies) in small amounts to test tolerance.
  • Pair iron-rich foods (red meat, spinach) with vitamin C sources (orange juice) to boost absorption.
  • Consider digestive enzymes or probiotics after consulting your doctor.

7. Supplements to Discuss with Your Doctor

  • Multivitamin with minerals, especially if you've had malabsorption.
  • Vitamin D and calcium for bone health (steroid use can weaken bones).
  • Iron supplements if you're anemic.
  • Vitamin B12 shots or oral supplements if levels are low.
  • Fish oil (omega-3) for its anti-inflammatory properties.

8. Lifestyle Strategies

  • Engage in light strength-training exercises to build muscle mass.
  • Get adequate sleep (7–9 hours) to support recovery and hormone balance.
  • Manage stress with meditation, yoga, or counseling—stress can trigger flares.
  • Keep a food and symptom diary to identify triggers and track progress.

9. When to Seek Professional Help

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:

  • Persistent vomiting or severe abdominal pain
  • Sudden, significant weight loss despite efforts
  • High fever, bloody diarrhea, or signs of dehydration
  • Severe fatigue or shortness of breath

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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