Dietary Reactions in Dogs
Gastrointestinal Food Reactions in Dogs
Gastrointestinal food reactions involve abnormal clinical symptoms to a particular diet. A dog that is experiencing a food reaction is unable to digest, absorb, and/or utilize a particular foodstuff.
It is important to note that these reactions are not due to food allergies, which involve an immune reaction to a particular component of a diet. However, both food reactions and food allergy share common symptoms, causes, diagnostics, and even treatments, making it a challenge for an attending veterinarian to differentiate between the two.
Reactions to a particular diet are often due to unknown causes, but they may be linked to a particular dietary ingredient, additive, or dietary compound. Also possible is a reaction to the toxic effects of a particular food contaminant (e.g., Salmonella) or to spoiled foodstuff (e.g., mold/fungus).
Dogs of any age, breed, or gender can be affected. Gluten sensitivity has been reported in Irish setters. Lactose intolerance is a common finding in adult dogs.
Symptoms and Types
Symptoms may appear after adding a new foodstuff or source to your dog’s diet. The clinical symptoms may subside in the fasted state (medically supervised) or within days of a new dietary change. Common symptoms of a dietary reaction include:
In most cases of adverse dietary reactions, there is a history of sudden diet change. The dog may also be reacting to food additives, coloring, spices, or propylene glycol, etc. Other underlying factors include an inability to utilize certain component(s) in a food and toxicity due to contaminated and/or spoiled foods.
Your veterinarian will take a detailed and comprehensive history from you, especially regarding the dog's diet. Diagnosis of food reactions can be a daunting task, as there are a number of other health problems that may produce a similar spectrum of symptoms. Moreover, there are other disorders that may occur with dietary intolerances, further complicating the diagnosis.
Laboratory tests include a complete blood count, biochemistry profile, and urinalysis. However, the results of these tests are often found normal if no other underlying disease is present. Further testing may be required to exclude other diseases that may cause similar symptoms in dogs.
The most widely practiced diagnostic procedure involves dietary manipulation of the affected dog. In this procedure efforts are made to find out the specific culprit in the diet. Home-cooked diets or special diet plans with minimal ingredients or additives are used initially. This can make it easier to determine the problematic dietary component in the individual dog. Typically, within a few days of the new diet clinical symptoms will start improving in these patients. After an improvement in clinical symptoms has been confirmed, your veterinarian will try to find the particular dietary ingredient by using various dietary ingredients.
Your veterinarian may also use endoscopy, a method in which a small camera that is attached to a flexible tube is inserted into the actual space to be examined. In this way the internal structure of the intestines can be closely examined, and will allow your doctor to take a tissue sample from the intestine for laboratory testing. Abdominal X-rays can also be useful in excluding other diseases that may cause similar clinical symptoms.
An in-depth examination of the properties of urine; used to determine the presence or absence of illness
The prediction of a disease’s outcome in advance
A property in which one item has the ability to stick or adhere to another.
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