https://www.chewy.com/education/cat/health-and-wellness/food-allergies-in-cats
*Cats are OBLIGATE Carnivores.
Food allergies in cats occur when the immune system mistakenly reacts to a specific ingredient - typically a protein - as if it were a harmful substance.
These reactions develop after repeated exposure to the ingredient and can result in symptoms that affect the skin or gastrointestinal system.
Common signs include persistent itching, excessive grooming, hair loss, vomiting, and diarrhea.
Diagnosing a food allergy requires ruling out other causes through a process that often involves an elimination diet.
During this trial, the cat is fed a novel or hydrolyzed protein diet for several weeks, with no other foods, treats, or flavored medications allowed.
If symptoms improve during the trial and return upon reintroducing the suspected allergen, a food allergy is confirmed.
Managing a diagnosed food allergy involves lifelong avoidance of the trigger ingredient and consistent monitoring of all food sources, including treats and supplements.
To reduce the risk of flare ups, caregivers should read ingredient labels carefully, avoid cross contamination, and consult their veterinarian before making any dietary changes.
Regular veterinary checkups and supporting gut health may also help manage symptoms and prevent complications.
Chewy editorial team reminds you that cats can experience food allergies much like humans, though the symptoms - such as persistent itching or digestive upset - are often easy to overlook or misidentify.
But with guidance from veterinary experts, you can learn to recognize the signs, uncover the cause, and take steps to support your cat’s long term health and comfort.
