Nutritional Therapy Research

Featured Research

Crohn's Disease Exclusion Diet Plus Partial Enteral Nutrition Induces Sustained Remission in a Randomized Controlled Trial (CDED, PEN)

Summary Excerpt: CDED plus PEN was better tolerated than EEN in children with mild to moderate CD. Both diets were effective in inducing remission by week 6. The combination CDED plus PEN induced sustained remission in a significantly higher proportion of patients than EEN, and produced changes in the fecal microbiome associated with remission. These data support use of CDED plus PEN to induce remission in children with CD.

Gastroenterology. 2019 Aug;157(2):440-450.e8. doi: 10.1053/j.gastro.2019.04.021. Epub 2019 Jun 4
Levine A et al

Efficacy of the Autoimmune Protocol Diet for Inflammatory Bowel Disease (AIP)

Summary Excerpt: Dietary elimination can improve symptoms and endoscopic inflammation in patients with IBD. Randomized controlled trials are warranted.

Inflamm Bowel Dis , 23 (11), 2054-2060 Nov 2017
Konijeti GG et al

An Anti-Inflammatory Diet as Treatment for Inflammatory Bowel Disease: a Case Series Report (IBD-AID)

Summary Excerpt: This case series indicates potential for the IBD-AID as an adjunct dietary therapy for the treatment of IBD. A randomized clinical trial is warranted.

Nutr J. 2014 Jan 16;13:5. doi: 10.1186/1475-2891-13-5
Olendzki B et al

Nutritional Therapy in Pediatric Crohn Disease: the Specific Carbohydrate Diet. (SCD)

Summary Excerpt: This chart review suggests that the SCD and other low complex carbohydrate diets may be possible therapeutic options for pediatric Crohn disease. Further prospective studies are required to fully assess the safety and efficacy of the SCD, or any other low complex SCDs in pediatric patients with Crohn disease.

J Pediatr Gastroenterol Nutr. 2014 Jan;58(1):87-91. doi: 10.1097/MPG.0000000000000103.
Suskind DL et al

Exclusive Enteral Nutrition Provides an Effective Bridge to Safer Interval Elective Surgery for Adults With Crohn's Disease (EEN)

Summary Excerpt: Exclusive enteral nutrition frequently down-stages the need for surgery in patients presenting with stricturing or penetrating complications of Crohn's disease; it is associated with a reduction in systemic inflammation, operative times and the incidence of post-operative abscess or anastomotic leak.

Aliment Pharmacol Ther , 45 (5), 660-669 Mar 2017
Heerasing N et al

Dietary Therapy With the Crohn's Disease Exclusion Diet Is a Successful Strategy for Induction of Remission in Children and Adults Failing Biological Therapy (CDED)

Summary Excerpt: Dietary treatment combining PEN with the CDED may be a useful salvage regimen for patients failing biological therapy despite dose escalation.

J Crohns Colitis , 11 (10), 1205-1212 2017 Oct 1
Sigall-Boneh RS et al

Exclusive Enteral Nutrition Therapy in Paediatric Crohn's Disease Results in Long-term Avoidance of Corticosteroids: Results of a Propensity-score Matched Cohort Analysis (EEN)

Summary Excerpt: These findings suggest that EEN induction therapy is more effective in achieving early remission and is associated with long-term steroid avoidance without increased use of biologics or need for surgery.

J Crohns Colitis , 11 (9), 1063-1070 2017 Sep 1
Connors J et al

Polymeric Diet Alone Versus Corticosteroids in the Treatment of Active Pediatric Crohn's Disease: A Randomized Controlled Open-Label Trial (EEN)

Summary Excerpt: In children with active and recently diagnosed CD, a short course of polymeric diet is more effective than corticosteroids in inducing healing of gut inflammatory lesions.

Clin Gastroenterol Hepatol , 4 (6), 744-53 Jun 2006
Borrelli O et al

The Specific Carbohydrate Diet for Inflammatory Bowel Disease: A Case Series (SCD)

Summary Excerpt: Our survey results suggest that SCD can potentially be an effective tool in the management of some patients with IBD and specifically in patients with colonic and ileocolonic CD who made up the majority of our study group. A highly educated group of patients follow the SCD; all but one of the adults in our study had a college or graduate degree. Our results also suggest that in some patients with moderate to severe disease who follow this diet, discontinuation of immunosuppressive agents has been feasible.

J Acad Nutr Diet. 2015 Aug;115(8):1226-32. doi: 10.1016/j.jand.2015.04.016
Kakodkar S et al

Date Title Diets Authors Summary Excerpt Citation
Jun 2021 Low-Fat, High-Fiber Diet Reduces Markers of Inflammation and Dysbiosis and Improves Quality of Life in Patients With Ulcerative Colitis Other Diets - UC Fritsch J et al In a cross-over study of patients with UC in remission, we found that a catered LFD or iSAD were each well tolerated and increased quality of life. However, the LFD decreased markers of inflammation and reduced intestinal dysbiosis in fecal samples. Dietary interventions therefore might benefit patients with UC in remission. Clin Gastroenterol Hepatol . 2021 Jun;19(6):1189-1199.e30. doi: 10.1016/j.cgh.2020.05.026. Epub 2020 May 20.
May 2021 A Randomized Trial Comparing the Specific Carbohydrate Diet to a Mediterranean Diet in Adults with Crohn's Disease SCD, MD Lewis JD et al This study compares the SCD and MD on symptoms, fecal calprotectin and CRP at 6 and 12 weeks finding no statistical significance in these endpoints. Gastroenterology. 2021;S0016-5085(21)03069-9. doi:10.1053/j.gastro.2021.05.047
Feb 2021 Elemental Diet Therapy Plays a Significant Role in Preventing Surgical Recurrence of Crohn's Disease in the Era of Biologics PEN Shinozaki M et al Although univariate analyses revealed that all three treatment strategies had significant effects on surgical recurrence in patients with CD, multivariate analysis revealed that only ED therapy was significantly associated with surgical recurrence rates. Thus, ED therapy plays an important role in the management of CD, even in the era of biological therapies. Surg Today . 2021 Feb;51(2):250-257. doi: 10.1007/s00595-020-02112-5. Epub 2020 Aug 18.
Jan 2021 Randomised Clinical Trial: Exclusive Enteral Nutrition Versus Standard of Care for Acute Severe Ulcerative Colitis EEN Sahu P et al Patients on EEN had a shorter hospital stay [median (range) 10 (8-17) vs 13 (8-24) days; P = 0.04], higher day 7 albumin level (34 ± 4 vs 29 ± 3 g/L, P < 0.01), greater reduction in serum C-reactive protein and faecal calprotectin levels (both P = 0.04) and a lower composite outcome of colectomy/hospitalisation at 6 months (16% vs 39%; P = 0.045) compared to SOC. Aliment Pharmacol Ther . 2021 Jan 13. doi: 10.1111/apt.16249
Dec 2020 The Specific Carbohydrate Diet and Diet Modification as Induction Therapy for Pediatric Crohn's Disease: A Randomized Diet Controlled Trial SCD, mSCD Suskind DL et al This study emphasizes the impact of diet in CD. Each diet had a positive effect on symptoms and inflammatory burden; the more exclusionary diets were associated with a better resolution of inflammation. Nutrients . 2020 Dec 6;12(12):E3749. doi: 10.3390/nu12123749
Oct 2020 Effectiveness of Mediterranean Diet's Adherence in children with Inflammatory Bowel Diseases MD Strisciuglio C et al Children with IBD in remission have a sub-optimal food intake compared to HCs. MD seems to correlate to decreased intestinal inflammation. Nutrients . 2020 Oct 20;12(10):3206. doi: 10.3390/nu12103206.
Oct 2020 Adherence to the Mediterranean Diet Is Associated with Decreased Fecal Calprotectin in Patients with Ulcerative Colitis after Pouch Surgery MD Godny L et al In patients with UC after pouch surgery, adherence to MED is associated with decreased calprotectin levels. Thus, MED may have a role in modifying intestinal inflammation in IBD. Eur J Nutr . 2020 Oct;59(7):3183-3190. doi: 10.1007/s00394-019-02158-3. Epub 2019 Dec 7.
May 2020 Multidimensional Impact of Mediterranean Diet on IBD Patients MD Chicco F et al A significant reduction of malnutrition-related parameters and liver steatosis was observed in both CD and UC patients after short-term dietary intervention based on the adoption of Md, and this was associated with a spontaneous improvement of disease activity and inflammatory markers. Inflamm Bowel Dis . 2020 May 22;izaa097. doi: 10.1093/ibd/izaa097. Online ahead of print.
Apr 2020 Dietary Therapies Induce Rapid Response and Remission in Pediatric Patients With Active Crohn's Disease CDED, EEN Sigall Boneh R et al For pediatric patients with active CD, dietary therapies (CDED and EEN) induce a rapid clinical response (by week 3). Identification of patients with and without a rapid response to diet might help identify those who, with compliance, will be in clinical remission by week 6 of the diet. Clin Gastroenterol Hepatol . 2020 Apr 14;S1542-3565(20)30487-0. doi: 10.1016/j.cgh.2020.04.006.
Mar 2020 Partial Enteral Nutrition Induces Clinical and Endoscopic Remission in Active Pediatric Crohn's Disease: Results of a Prospective Cohort Study PEN Urlep D et al The results of our prospective pilot study suggest that PEN, allowing one meal from AID, could be as effective as EEN in inducing clinical and endoscopic remission in children with active CD. However, larger randomized controlled studies are warranted to confirm our findings. Eur J Pediatr . 2020 Mar;179(3):431-438. doi: 10.1007/s00431-019-03520-7. Epub 2019 Nov 28.
Oct 2019 An Autoimmune Protocol Diet Improves Patient-Reported Quality of Life in Inflammatory Bowel Disease AIP Chandrasekaran A et al Dietary modification can improve quality of life as early as week 3 in patients with active IBD. Larger randomized controlled trials are needed to examine dietary interventions in IBD. Crohn's & Colitis 360, Volume 1, Issue 3, October 2019, otz019,
Oct 2019 The Autoimmune Protocol Diet Modifies Intestinal RNA Expression in Inflammatory Bowel Disease AIP Chandrasekaran A et al Results from this RNA substudy would suggest dietary elimination, along with emphasis on a nutrient-dense diet, has the potential to positively modify inflammation and reduce symptoms in UC. Our substudy, though very small, included a well-defined subgroup of participants with UC on mesalamine only, avoiding effects that might be attributable to systemic or targeted immunosuppression. Crohn's & Colitis 360, Volume 1, Issue 3, October 2019, otz016