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  • Tamar Feldman, RDN CDE

Case Study: Crohn’s Disease and A Nutritional Intervention

Profile: Aviva* 21 years old

Aviva was a self-assured young woman who had been diagnosed with Crohn’s disease 6 months prior. At our initial consult, she was on a relatively benign anti-inflammatory medication used occasionally for mild Crohn’s cases. Her symptoms were still not fully controlled, and her main complaints were occasional abdominal discomfort and loose stools.

Aviva’s main concern was to reduce her current symptoms and prevent a flare-up of her condition, which would necessitate the usage of stronger medications. When she voiced the commonly verbalized desire to “get off all the medications,” I explained as I typically do at an initial visit that this goal may not be attainable for all individuals. We set an initial achievable goal of improved quality of life and reduced symptoms on her current regimen.

Session 1:

Lifestyle: High achiever, studying for a health profession

Mom verified that while Aviva overall managed her stress well, she definitely placed a lot of internal pressure on herself in the process of achieving her goals.

Stress can exacerbate most health conditions, including Crohn’s disease. In fact, I find that the majority of my GI clients are of either “type A” personality, prone to anxiety, or experiencing or have experienced severe or chronic stress due to extraneous circumstances. I discussed with Aviva the importance of learning and adopting healthy stress management and relaxation techniques.

Known Food Intolerances: Raw fruits and vegetables, dairy foods, greasy foods, spicy foods

Most individuals suffering from Crohn’s disease cannot tolerate the above foods well. Other commonly problematic foods for many individuals are nuts/seeds, alcohol, coffee, and high-fiber whole grains

Overall Rating of GI symptoms: 6 (on a scale of 1-10, 1 = perfect, 10 = awful)

Typical Diet:

  • Breakfast - Skipped or a bag of dry cereal

  • Snacks - White pretzels, crackers, applesauce

  • Lunch - Sushi, rice cakes with tuna or egg, salad with avocado (problematic in large quantities but seemed to be ok in a smaller portion)

  • Dinner - Chicken, turkey, fish with rice or potatoes; veggie soup or cooked veggie

Aviva appeared to be limiting her diet due to a fear of many foods and the desire to lead a functional life without exacerbating her Crohn’s.

Aviva, her mom, and I discussed what dietary restrictions she would be agreeable to trying. Aviva was quite nervous about any intense intervention such as SCD or the Crohn’s Disease Exclusion Diet and wanted to start on a milder dietary regimen with supplements and see if she could still achieve success. Because she had already identified dairy as a trigger, and there is limited data to support a dairy-free diet in IBD, we agreed upon a Mediterranean diet that excluded dairy.


  • The Mediterranean and dairy-free diet: I provided Aviva with a customized meal plan and some helpful recipes

  • Temporarily eliminate raw fruits and vegetables, choosing cooked forms such as soups, fruit soup, and applesauce; Blended smoothies are permitted

  • Supplements

    • Curcumin

    • Visbiome Probiotic

    • Citrucel Fiber, if prone to loose stools

    • Zinc Carnosine

  • Nutritional foods to incorporate into the diet

    • Sauerkraut 1-2 Tbsp /day

    • Bone broth 1 cup daily

    • Anti-inflammatory greens powder

Session 2

1 month later

Aviva had been following the diet religiously for one month. She had already seen an improvement in her symptoms, giving herself a 4 on the self-assessment scale. Labs showed low Vitamin D levels.

New Interventions:

  • Vitamin D 5000 IU/day – with follow-up monitoring, and decrease to 2000 IU/day once at baseline

  • Methylated B complex

Sessions 3-4:

Aviva reported progressive significant improvement, with session 3 spent mainly thinking up new food ideas. By session 4, she scaled her Crohn's symptoms at a 2, and she had cut her medication dosage in half with her physician’s supervision. She requested my approval to reintroduce salad and raw fruits, which I allowed in small quantities, increasing as tolerated. I requested that she re-test blood inflammatory markets and Vitamin D.

Session 5: 6 months later

Aviva was including most raw fruits and vegetables, maintaining a 2 on her Crohn’s self-assessment scale, and was happy with her diet. We were thrilled that her inflammatory markers were in the normal range! Vitamin D supplementation to maintain her sufficient levels was advised indefinitely.

Working with Aviva was a wonderful experience demonstrating to me the effectiveness of nutritional therapy combined with a positive attitude and a strong will. While not all Crohn’s cases are fortunate to see complete improvement, most can see some degree of positive change from an evidence-based dietary approach.

Note: Names have been changed to protect privacy*

To schedule a nutrition consult with a gut-health trained Registered Dietitian expert, click here: or email

Tamar Feldman, RDN CDE is a Registered Dietitian/Nutritionist and a Certified Diabetes Educator, specializing in nutritional therapy for gut health, autoimmune disease, and hormone balance. She serves as the lead dietitian for GI Trak virtual gut health center and is a wellspring magazine contributor.

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