Owners’ attitudes and practices regarding nutrition of dogs diagnosed with cancer presenting at a referral oncology service in Ontario, Canada

OBJECTIVES To investigate owner attitudes and dietary practices following cancer diagnosis in a dog. METHODS A retrospective cross‐sectional survey of 75 dog owners presenting with their dogs to a tertiary referral oncology service through a demographic questionnaire and in‐person or telephone interviews regarding the dog's nutrition. RESULTS Conventional diets (71%) were most commonly fed as a single diet to canine cancer patients followed by homemade cooked (7%) and homemade raw (4%). Several owners (18%) provided combinations of these diets. Owners reported some distrust towards conventional diets (51%). Appetite loss occurred in 35% of dogs and diet changes reported for 25% of dogs in the study involved exclusion of a conventional (63%) and/or inclusion of a homemade (54%) component. 90% of owners noted the diet change was associated with the cancer diagnosis. Supplements were given by 39% of owners. 85% of owners highly valued veterinary nutritional advice. CLINICAL RELEVANCE Following a cancer diagnosis, dog owners appear to change their approach to managing their dog's nutrition. Given the value owners place on veterinary nutritional advice, veterinarians have a key role in guiding nutritional management of the canine cancer patient.