Practice Scenario

Meet Dewey, a senior cat that has lost weight.

Get to know DEWEY

A 13-year-old, neutered male cat

  • Dewey is an indoor cat presented for gradual weight loss.
  • Owner has not noticed a change in Dewey’s appetite. However, she has 3 cats and group feeds them an adult dry cat food ad libitum plus a “small amount” of canned food occasionally as a treat. She is not sure if Dewey is drinking or urinating more.
  • Dewey has a body condition score of 3/9, weighs 4.3 kg (9.5 pounds), and has moderate muscle loss. Dewey has not been examined in over 2 years. His last recorded body condition score was 5/9 when he weighed 5.4 kg (almost 12 pounds).
  • On exam, Dewey is quiet, but responsive. Mucous membranes are somewhat dry with a normal capillary refill time. Although he is purring, heart and lung sounds appear normal. He exhibits no pain on abdominal palpation. His kidneys feel slightly small.

Gastrointestinal Disorders

Feline Chronic Enteropathy

Chronic enteropathy refers to gastrointestinal (GI) disease with clinical signs lasting longer than 3 weeks in the absence of identified enteropathogens, parasites, non-GI disorders (e.g., renal disease, hyperthyroidism), persistent foreign bodies and/or toxin exposure, or neoplasia.1─4 Feline chronic enteropathy encompasses food-responsive enteropathy, which includes both food allergy and food intolerance; antibiotic-responsive enteropathy; immunosuppressant-responsive enteropathy (i.e., steroid-responsive enteropathy or inflammatory bowel disease); and alimentary small cell lymphoma.3,5─7

Cats with chronic enteropathyꟷregardless of the final diagnosisꟷmay present with any combination of GI clinical signs.3,5,8,9 The most common clinical sign in cats with chronic enteropathy is weight loss, followed by vomiting, changes in appetite and diarrhea.3,4,9─11 Cats with food-responsive enteropathy (which is covered in more detail separately) may present more frequently with diarrhea as the chief complaint.5,9,12

Diet modification may be an important first step in the management of cats with chronic enteropathy. Nutritional intervention should provide adequate nutrients to meet cats’ nutritional requirements, make up for any nutrient losses through the GI tract, and help manage clinical signs.

feline stomach intestine icon

Key Messages

  • Common nutritional strategies for managing cats with chronic enteropathy include dietary modifications, vitamin B12 supplementation (when indicated), and administration of probiotics to help address dysbiosis and reduce mucosal inflammation.3,7 
  • Cats with chronic enteropathy should be fed a highly digestible, palatable, high-protein formula to minimize lean body mass loss, manage impaired digestion and/or absorption of macronutrients (e.g., protein, fat or carbohydrate), and/or address dysbiosis. 
    • Unlike dogs, most cats with chronic enteropathy do not need a fat-restricted diet.16 
    • Commercial therapeutic gastrointestinal diets have been proven effective for managing chronic GI signs in cats.16─18 
    • Diets made with hydrolyzed or novel protein ingredients also may be recommended for cats with some types of chronic enteropathy because dietary antigens are suspected to play a role in GI inflammation.5 
  • Cobalamin (vitamin B12) deficiency has been well-documented in cats with chronic enteropathies, despite its abundance in feline diets.19─21 Vitamin B12 should be supplemented, either parenterally or enterally, if testing reveals a deficiency.3 
  • Probiotics, especially those shown to modulate the immune system or to have anti-inflammatory properties, may benefit some cats with chronic enteropathy as part of a multimodal therapeutic approach.7 
    • Cats with chronic enteropathy experience patterns of dysbiosis similar to those found in people with IBD, although more research is needed.22,23  
    • Probiotics can confer a positive effect on GI function. Since different probiotic strains have varying effects on the host, specific probiotics should be chosen based on the desired goals. 
  • Initially, cats with chronic enteropathy may benefit from small, frequent meals (e.g., 3 to 6 meals per day). Frequent small meals can help improve nutrient absorption and minimize adverse GI responses.
conversation starter

"Weight loss, changes in appetite, vomiting and/or diarrhea are common signs of gastrointestinal disease in cats, but they can also be caused by other conditions unrelated to the digestive system. In addition to the diagnostic tests that I am recommending, I also recommend that [cat's name] be started on a special diet to see if [he/she] might be experiencing a food allergy or food intolerance. Feeding this special diet can help get your cat back to normal or may indicate that medication or additional testing is needed."

Related Tools and Content:

Intestinal Dysbiosis in Dogs and Cats

Diet modification is a key component of therapeutic plans for managing dogs and cats with intestinal dysbiosis.

View Brief 1 min to 5 min

Food-Responsive Enteropathy in Cats

Diet plays an important role in the diagnosis and management of cats with food-responsive enteropathy.

View Brief 1 min to 5 min

To Share With Pet Owner:

How to Encourage Finicky Pets to Eat

Pets who are finicky, fussy or not interested in food can be a challenge.

View Brief 1 min to 5 min

Feline Body Condition System Sheet

A visual aid to the Purina Body Condition Score System for cats.​

View Tool 1 min to 5 min

Switching Pet Foods - Cats

Gradually transitioning onto a new diet minimizes the risk of stomach upset.

View Brief 1 min to 5 min

References

  1. Marsilio, S. (2021). Differentiating inflammatory bowel disease from alimentary lymphoma in cats: Does it matter? Veterinary Clinics of North America: Small Animal Practice, 51(1), 93─109. doi: 10.1016/j.cvsm.2020.09.009 
  2. Ganz, H., Kingsbury, D., & Dahlhausen, K. E. (2021, March 31). A new framework for chronic GI disease in dogs and cats. IVC Journal, 11. Available online at https://ivcjournal.com/chronic-enteropathy-chronic-gi-disease-dogs-cats 
  3. Jergens, A. E. (2012). Feline idiopathic inflammatory bowel disease: What we know and what remains to be unraveled. Journal of Feline Medicine and Surgery, 14(7), 445─458. doi: 10.1177/1098612X12451548 
  4. Jergens, A. E., Crandell, J. M., Evans, R., Ackermann, M., Miles, K. G., & Wang, C. (2010). A clinical index for disease activity in cats with chronic enteropathy. Journal of Veterinary Internal Medicine, 24(5), 1027─1033. doi: 10.1111/j.1939-1676.2010.0549.x 
  5. Guilford, W. G., Jones, B. R., Markwell, P. J., Arthur, D. G., Collett, M. G., & Harte, J. G. (2001). Food sensitivity in cats with chronic idiopathic gastrointestinal problems. Journal of Veterinary Internal Medicine, 15(1), 7─13. 
  6. WSAVA International Gastrointestinal Standardization Group, Washabau, R. J., Day, M. J., Willard, M. D., Hall, E. J., Jergens, A. E., Mansell, J., Minami, T., & Bilzer, T. W. (2010). Endoscopic, biopsy, and histopathologic guidelines for the evaluation of gastrointestinal inflammation in companion animals. Journal of Veterinary Internal Medicine, 24(1), 10─26. doi: 10.1111/j.1939-1676.2009.0443.x 
  7. Marsilio, S. (2021). Feline chronic enteropathy. Journal of Small Animal Practice, 62(6), 409─419. doi: 10.1111/jsap.13332 
  8. Al-Ghazlat, S., Eriksson de Rezende, C., & Ferreri, J. (2013). Feline small cell lymphosarcoma versus inflammatory bowel disease: Diagnostic challenges. Compendium: Continuing Education for Veterinarians, 35(6), E1─E6. 
  9. Gianella, P., Pietra, M., Crisi, P. E., Famigli Bergamini, P., Fracassi, F., Morini, M., & Boari, A. (2017). Evaluation of clinicopathological features in cats with chronic gastrointestinal signs. Polish Journal of Veterinary Sciences, 20(2), 403─410. doi: 10.1515/pjvs-2017-0052 
  10. Burke, K. F., Broussard, J. D., Ruaux, C. G., Suchodolski, J. S., Williams, D. A., & Steiner, J. M. (2013). Evaluation for fecal α1-proteinase inhibitor concentrations in cats with idiopathic inflammatory bowel disease and cats with gastrointestinal neoplasia. Veterinary Journal, 196(2), 189─196. doi: 10.1016/j.tvjl.2012.09.019 
  11. Norsworthy, G. D., Estep, J. S., Hollinger, C., Steiner, J. M., Lavallee, J. O., Gassler, L. N., Restine, L. M., & Kiupel, M. (2015). Prevalence and underlying causes of histologic abnormalities in cats suspected to have chronic small bowel disease: 300 cases (2008─2013). Journal of the American Veterinary Medical Association, 247(6), 629─635. doi: 10.2460/javma.247.6.629 
  12. Mueller, R. S., & Olivry, T. (2018). Critically appraised topic on adverse food reactions of companion animals (6): Prevalence of noncutaneous manifestations of adverse food reactions in dogs and cats. BMC Veterinary Research, 14(1), Article 341. doi: 10.1186/s12917-018-1656-0 
  13. Allenspach, K., Wieland, B., Gröne, A., & Gaschen, F. (2007). Chronic enteropathies in dogs: Evaluation of risk factors for negative outcome. Journal of Veterinary Internal Medicine, 21(4), 700─708. doi: 10.1111/j.1939-1676.2007.tb03011.x 
  14. Jergens, A. E., Schreiner, C. A., Frank, D. E., Niyo, Y., Ahrens, F. E., Eckersall, P. D., Benson, T. J., & Evans, R. (2003). A scoring index for disease activity in canine inflammatory bowel disease. Journal of Veterinary Internal Medicine, 17(3), 291─297. doi: 10.1111/j.1939-1676.2003.tb02450.x 
  15. Nahon, S., Ramtohul, T., Paupard, T., Belhassan, M., Clair, E., & Abitbol, V. (2018). Evolution in clinical presentation of inflammatory bowel disease over time at diagnosis: A multicenter cohort study. European Journal of Gastroenterology & Hepatology, 30(10), 1125─1129. doi: 10.1097/MEG.0000000000001201 
  16. Laflamme, D. P., Xu, H., & Long, G. M. (2011). Effect of diets differing in fat content on chronic diarrhea in cats. Journal of Veterinary Internal Medicine, 25(2), 230─235. doi: 10.1111/j.1939-1676.2010.0665.x 
  17. Laflamme, D. P., Xu, H., Cupp, C. J., Kerr, W. W., Ramadan, Z., & Long, G. M. (2012). Evaluation of canned therapeutic diets for the management of cats with naturally occurring chronic diarrhea. Journal of Feline Medicine and Surgery, 14(10), 669─677. doi: 10.1177/1098612X12446906 
  18. Perea, S. C., Marks, S. L., Daristotle, L., Koochaki, P. E., & Haycock, R. (2017). Evaluation of two dry commercial therapeutic diets for the management of feline chronic gastroenteropathy. Frontiers in Veterinary Science, 4, Article 69. doi: 10.3389/fvets.2017.00069 
  19. Simpson, K. W., Fyfe, J., Cornetta, A., Sachs, A., Strauss-Ayali, D., Lamb, S. V., & Reimers, T. J. (2001). Subnormal concentrations of serum cobalamin (vitamin B12) in cats with gastrointestinal disease. Journal of Veterinary Internal Medicine, 15(1), 26─32. doi: 10.1111/j.1939-1676.2001.tb02293.x 
  20. Ruaux, C. G., Steiner, J. M., & Williams, D. A. (2005). Early biochemical and clinical responses to cobalamin supplementation in cats with signs of gastrointestinal disease and severe hypocobalaminemia. Journal of Veterinary Internal Medicine, 19(2), 155─160. doi: 10.1111/j.1939-1676.2005.tb02676.x 
  21. Reed, N., Gunn-Moore, D., & Simpson, K. (2007). Cobalamin, folate and inorganic phosphate abnormalities in ill cats. Journal of Feline Medicine and Surgery, 9(4), 278─288. doi: 10.1016/j.jfms.2007.01.005 
  22. Marsilio, S., Pilla, R., Sarawichitr, B., Chow, B., Hill, S. L., Ackermann, M. R., Estep, J. S., Lidbury, J. A., Steiner, J. M., & Suchodolski, J. S. (2019). Characterization of the fecal microbiome in cats with inflammatory bowel disease or alimentary small cell lymphoma. Scientific Reports, 9, Article 19208. doi: 10.1038/s41598-019-55691-w 
  23. Ramadan, Z., Xu, H., Laflamme, D., Czarnecki-Maulden, G., Li, Q. J., Labuda, J., & Bourqui, B. (2014). Fecal microbiota of cats with naturally occurring chronic diarrhea assessed using 16S rRNA gene 454-pyrosequencing before and after dietary treatment. Journal of Veterinary Internal Medicine, 28(1), 59─65. doi: 10.1111/jvim.12261