01/14/2024
Title: Understanding Food Allergies in Dogs and Cats
Introduction:
Similar to humans, dogs and cats can also suffer from food allergies. It is not uncommon to notice clinical signs of itchiness in pets affected by this condition. In dogs, areas such as the abdomen, groin, armpits, muzzle, face, ears, and feet are commonly affected, whereas in cats, discomfort is usually observed along their faces and necks. Hair loss and recurrent skin and ear infections caused by yeast and bacteria are common complaints associated with food allergies in pets.
Environmental Factors:
In some cases, the discomfort experienced by pets could be seasonal, indicating the influence of environmental allergens like molds, plants, and pollens. Fleas, being potential parasites, should also be ruled out as a possible cause. Interestingly, cats and dogs can be allergic to environmental allergens, specific foods, and even fleas.
Diagnosing Food Allergies:
When it comes to diagnosing food allergies, both blood tests and skin injection tests are available options; however, they tend to be unreliable. Currently, the most accurate method for determining the presence of food allergies is through a hypoallergenic food trial, which typically spans 6-12 weeks. The most reliable foods for a food trial are Prescription Hill's, Purina, and Royal Canin. Even though there are other over the counter diets advertised as hypoallergenic, they are commonly processed on food lines contaminated with allergenic ingredients. A hypoallergenic diet consists of minimal ingredients, including a novel protein source that the pet has had limited or no prior exposure to. Common examples of novel protein sources include rabbit, duck, venison, and whitefish. Even the treats given to the pet must be hypoallergenic. It's important to note that ingredients like corn, soy, beef (especially in dogs), and wheat are known to be allergenic. Some pet owners prefer home-cooked diets for their pets. In these cases it's advisable to consult a nutritionist ie. www.balanceit.com. Any ingredient can potentially trigger an allergic reaction in a pet, including chewable heart worm preventatives, flavored medications (NSAIDs and antibiotics), and toothpastes.
Management and Reintroduction:
Throughout the food trial, any existing skin or ear infections must be appropriately treated. Today we have medications such as Cytopoint (not safe for cats) and Apoquel (used off label in cats) that can make even the most uncomfortable pet happy again. Eventually, if the pet was allergic to a particular food, the elimination of that food from their diet should lead to a resolution of clinical signs. The itchiness should subside, and the infections should not recur. At this point, one ingredient from the previous diet can be reintroduced at a time. If the pet shows signs of a relapse upon exposure to the allergenic ingredient, it confirms the sensitivity to that particular ingredient. However, the duration of the relapse can vary, ranging from 24 hours to 2 weeks. Identifying the specific ingredient that triggers the allergy may require patience and
In conclusion, understanding and managing food allergies in dogs and cats is crucial for maintaining their overall health and well-being. By taking the necessary steps to identify and eliminate allergenic ingredients from their diet, pet owners can greatly alleviate their pets' discomfort and improve their quality of life.