Is Your Dog's Food Making Them Sick? A Symptom Checklist
Diet is one of the most commonly overlooked factors in chronic dog health issues. Many conditions that seem unrelated to food are actually driven by it. Here's the checklist and what each symptom cluster might indicate.
Digestive Symptoms (Obvious Connection)
Chronic loose stools or diarrhea (more than 2 weeks): could be food intolerance, protein allergy, inadequate fiber, or poor quality ingredients causing gut dysbiosis. Diet trial recommended.
Frequent vomiting (more than once per week): possible food sensitivity, eating too fast, eating too much fat, or gastric irritation from preservatives or fillers. Elevated feeding bowl for large breed dogs experiencing post-meal vomiting may help if the cause is aerophagia (eating air while eating).
Excessive gas: fermentable ingredients, inadequate protein digestibility, or food intolerance. Very high carbohydrate diets ferment in the colon and produce gas.
Skin and Coat Symptoms (Less Obvious Connection)
Chronic itching without obvious external cause: food allergy is a primary differential alongside environmental allergies. Distribution matters: food allergy often causes facial, paw, and perianal itching; environmental allergy causes more generalized itching in armpits, groin, and belly.
Dull, dry, or brittle coat: omega-3 fatty acid deficiency is the most common dietary cause. Assess the food's fat profile and consider supplementation.
Excessive shedding year-round: similar to above, often omega-3 deficiency or overall protein quality issues.
Recurrent ear infections (monthly or quarterly): chronic ear yeast infections are frequently associated with food allergies or high-sugar/high-carbohydrate diets that support yeast overgrowth systemically.
Energy and Weight Symptoms
Unexplained weight gain despite controlled portions: the food may be higher calorie than the label suggests, or the guaranteed analysis may not match actual formulation. Switch foods and reassess.
Low energy, apparent lethargy: nutrient deficiencies (particularly B vitamins destroyed in processing), poor protein digestibility affecting muscle function, or chronic low-grade GI discomfort from diet.
The 8-Week Diet Trial
If you suspect diet is a factor in your dog's health issues, an 8-week trial on a new food with a different protein source and no other dietary changes is the most informative test available. No treats, no table food, no flavored medications. A genuine change that clears the system takes time.
Browse our freeze-dried raw collection for high-digestibility, clean-ingredient options appropriate for a dietary trial, and the full dog food range for variety.