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Abstract
PURPOSE OF REVIEW Diet may play both a causal and therapeutic role for inflammatory bowel disease (IBD). Physicians caring for patients with IBD are often asked to make dietary recommendations. However, there are no well-established guidelines on the use of diet as a treatment of IBD. In this review, we describe the evidence supporting diet as a potential cause for IBD, patient-perceived symptoms based on diet, current research on various diets as a treatment for IBD, and areas of future research. RECENT FINDINGS New studies in murine models suggest that dietary emulsifiers may trigger the gut inflammatory cascade. New studies of restriction diets in patients have shown a relationship between dietary intake, symptoms, and bowel inflammation. Until several ongoing clinical trials are completed, a reasonable approach to dietary recommendations for patients with IBD is to propose a well-balanced, healthy (low-fat, low-sugar) diet prepared from fresh ingredients, such as the Mediterranean diet, with exclusions of self-identified foods that worsen or trigger IBD-related symptoms.
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Barnoud D, Darmaun D, Jirka A. Polémique : l’utilisation des mélanges semi-élémentaires en nutrition entérale. NUTR CLIN METAB 2017. [DOI: 10.1016/j.nupar.2017.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Andersen V, Hansen AK, Heitmann BL. Potential Impact of Diet on Treatment Effect from Anti-TNF Drugs in Inflammatory Bowel Disease. Nutrients 2017; 9:E286. [PMID: 28294972 PMCID: PMC5372949 DOI: 10.3390/nu9030286] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/08/2017] [Accepted: 03/10/2017] [Indexed: 12/16/2022] Open
Abstract
We wanted to investigate the current knowledge on the impact of diet on anti-TNF response in inflammatory bowel diseases (IBD), to identify dietary factors that warrant further investigations in relation to anti-TNF treatment response, and, finally, to discuss potential strategies for such investigations. PubMed was searched using specified search terms. One small prospective study on diet and anti-TNF treatment in 56 patients with CD found similar remission rates after 56 weeks among 32 patients with good compliance that received concomitant enteral nutrition and 24 with poor compliance that had no dietary restrictions (78% versus 67%, p = 0.51). A meta-analysis of 295 patients found higher odds of achieving clinical remission and remaining in clinical remission among patients on combination therapy with specialised enteral nutrition and Infliximab (IFX) compared with IFX monotherapy (OR 2.73; 95% CI: 1.73-4.31, p < 0.01, OR 2.93; 95% CI: 1.66-5.17, p < 0.01, respectively). In conclusion, evidence-based knowledge on impact of diet on anti-TNF treatment response for clinical use is scarce. Here we propose a mechanism by which Western style diet high in meat and low in fibre may promote colonic inflammation and potentially impact treatment response to anti-TNF drugs. Further studies using hypothesis-driven and data-driven strategies in prospective observational, animal and interventional studies are warranted.
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Affiliation(s)
- Vibeke Andersen
- Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Centre Sonderjylland, Hospital of Southern Jutland, Åbenrå 6200, Denmark.
- Institute of Molecular Medicine, University of Southern Denmark, Odense 5000, Denmark.
| | - Axel Kornerup Hansen
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg 1871, Denmark.
| | - Berit Lilienthal Heitmann
- Research Unit for Dietary Studies, Parker Institute, Frederiksberg 2000, Denmark.
- Section for General Medicine, Department of Public Health, University of Copenhagen, Copenhagen 1353, Denmark.
- National Institute of Public Health, University of Southern Denmark, Odense 5000, Denmark.
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Lewis JD, Abreu MT. Diet as a Trigger or Therapy for Inflammatory Bowel Diseases. Gastroenterology 2017; 152:398-414.e6. [PMID: 27793606 DOI: 10.1053/j.gastro.2016.10.019] [Citation(s) in RCA: 229] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 10/15/2016] [Accepted: 10/19/2016] [Indexed: 02/07/2023]
Abstract
The most common question asked by patients with inflammatory bowel disease (IBD) is, "Doctor, what should I eat?" Findings from epidemiology studies have indicated that diets high in animal fat and low in fruits and vegetables are the most common pattern associated with an increased risk of IBD. Low levels of vitamin D also appear to be a risk factor for IBD. In murine models, diets high in fat, especially saturated animal fats, also increase inflammation, whereas supplementation with omega 3 long-chain fatty acids protect against intestinal inflammation. Unfortunately, omega 3 supplements have not been shown to decrease the risk of relapse in patients with Crohn's disease. Dietary intervention studies have shown that enteral therapy, with defined formula diets, helps children with Crohn's disease and reduces inflammation and dysbiosis. Although fiber supplements have not been shown definitively to benefit patients with IBD, soluble fiber is the best way to generate short-chain fatty acids such as butyrate, which has anti-inflammatory effects. Addition of vitamin D and curcumin has been shown to increase the efficacy of IBD therapy. There is compelling evidence from animal models that emulsifiers in processed foods increase risk for IBD. We discuss current knowledge about popular diets, including the specific carbohydrate diet and diet low in fermentable oligo-, di-, and monosaccharides and polyols. We present findings from clinical and basic science studies to help gastroenterologists navigate diet as it relates to the management of IBD.
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Affiliation(s)
- James D Lewis
- Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
| | - Maria T Abreu
- Crohn's and Colitis Center, Department of Medicine, Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, Florida.
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Cuív PÓ, Begun J, Keely S, Lewindon PJ, Morrison M. Towards an integrated understanding of the therapeutic utility of exclusive enteral nutrition in the treatment of Crohn's disease. Food Funct 2017; 7:1741-51. [PMID: 26948398 DOI: 10.1039/c5fo01196e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Crohn's disease (CD) is a chronic disease characterized by episodic and disabling inflammation of the gastrointestinal tract in genetically susceptible individuals. The incidence and prevalence of CD is rising rapidly across the world emphasising that disease risk is also influenced by environmental and lifestyle factors, as well as the microbial community resident in the gut. Childhood-onset CD is associated with an aggressive disease course that can adversely impact patient growth and development. There is no cure for CD however new onset and recurrent cases of paediatric CD are often responsive to exclusive enteral nutrition (EEN) treatment. EEN treatment involves the exclusive consumption of an elemental or polymeric formula for several weeks and it is well established as a primary intervention strategy. EEN treatments typically achieve remission rates of over 80% and importantly they are associated with a high rate of mucosal healing, far superior to steroids, which is prognostic of improved long-term health outcomes. Furthermore, they are safe, have few side effects, and improve nutritional status and linear growth. Surprisingly, despite the utility of EEN our understanding of the host-microbe-diet interactions that underpin clinical remission and mucosal healing are limited. Here, we review the current state of knowledge and propose that the induction of autophagy, in addition to modulation of the microbiota and coordinated effects on inflammation and epithelial cell biology, may be critical for the therapeutic effects associated with EEN. A better understanding of EEN treatment will provide new opportunities to restore gut homeostasis and prolong periods of remission, as well as provide new insights into the factors that trigger and perhaps prevent CD.
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Affiliation(s)
- Páraic Ó Cuív
- The University of Queensland Diamantina Institute, The University of Queensland, Translational Research Institute, Brisbane, QLD 4102, Australia.
| | - Jakob Begun
- Mater Research Institute, The University of Queensland, Brisbane, QLD 4102, Australia and School of Medicine, The University of Queensland, Brisbane, QLD 4102, Australia and Department of Gastroenterology, Mater Health Services, Brisbane, Australia
| | - Simon Keely
- School of Biomedical Science and Pharmacy, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia and Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Peter J Lewindon
- The University of Queensland, Department of Paediatrics and Child Health, Lady Cilento Children's Hospital, QLD 4101, Australia
| | - Mark Morrison
- The University of Queensland Diamantina Institute, The University of Queensland, Translational Research Institute, Brisbane, QLD 4102, Australia.
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Nguyen DL, Limketkai B, Medici V, Saire Mendoza M, Palmer L, Bechtold M. Nutritional Strategies in the Management of Adult Patients with Inflammatory Bowel Disease: Dietary Considerations from Active Disease to Disease Remission. Curr Gastroenterol Rep 2016; 18:55. [PMID: 27637649 DOI: 10.1007/s11894-016-0527-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Inflammatory bowel disease (IBD) is a group of chronic, lifelong, and relapsing illnesses, such as ulcerative colitis and Crohn's disease, which involve the gastrointestinal tract. There is no cure for these diseases, but combined pharmacological and nutritional therapy can induce remission and maintain clinical remission. Malnutrition and nutritional deficiencies among IBD patients result in poor clinical outcomes such as growth failure, reduced response to pharmacotherapy, increased risk for sepsis, and mortality. The aim of this review is to highlight the consequences of malnutrition in the management of IBD and describe nutritional interventions to facilitate induction of remission as well as maintenance; we will also discuss alternative delivery methods to improve nutritional status preoperatively.
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Affiliation(s)
- Douglas L Nguyen
- Division of Gastroenterology & Hepatology, Department of Medicine, University of California-Irvine Medical Center, 101 The City Drive, Orange, CA, 92868, USA.
| | - Berkeley Limketkai
- Department of Medicine, Stanford University, 300 Pasteur Dr, Palo Alto, CA, 94304, USA
| | - Valentina Medici
- Department of Medicine, University of California-Davis, 2315 Stockton Blvd, Sacramento, CA, 95817, USA
| | - Mardeli Saire Mendoza
- Department of Medicine, Ochsner Clinic, 1514 Jefferson Hwy, New Orleans, LA, 70121, USA
| | - Lena Palmer
- Department of Medicine, Loyola University, 2160 S First Ave, Maywood, IL, 60153, USA
| | - Matthew Bechtold
- Department of Medicine, University of Missouri-Columbia, 1 Hospital Dr, Columbia, MO, 65201, USA
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