Best Cat Food in Canada — Cat Food Reviews

Cats are obligate carnivores — they need nutrients found only in animal tissue, such as taurine, arachidonic acid and preformed vitamin A. That makes choosing a cat food less about trends and more about a few non-negotiables, based on AAFCO standards and guidance from the American Association of Feline Practitioners (AAFP).

1. The AAFCO statement comes first

Look for "complete and balanced" with a named life stage: growth (kittens), adult maintenance, or all life stages. Kittens need more calories, protein and DHA than adults. A food without an AAFCO nutritional adequacy statement is a treat or topper, not a diet — no matter what the front of the bag says.

2. Wet, dry, or both?

Wet food is roughly 70–80% water, which helps cats — naturally poor drinkers — stay hydrated and supports urinary tract health. Dry food is cheaper per calorie and more convenient. Many veterinarians suggest a mix: wet food as the base for hydration, with measured dry food for convenience. Whatever the format, portion control matters more, because indoor cats gain weight easily.

3. Taurine is not optional

Cats cannot make enough taurine on their own, and deficiency causes heart disease (dilated cardiomyopathy) and blindness. Any complete commercial food contains enough, but home-cooked or vegetarian diets for cats are genuinely dangerous without a veterinary nutritionist formulating them.

4. Ignore the marketing words

"Natural", "holistic", "ancestral" and "human-grade" have no regulated meaning on Canadian pet food labels. Grain-free formulas are not healthier for cats — cats have no dietary need for grains, but they tolerate them fine, and the grains are usually replaced with legumes or potatoes anyway. Judge the manufacturer: do they employ a veterinary nutritionist, run feeding trials, and own their factories?

5. Transition slowly

Cats are suspicious of new food. Mix increasing amounts of the new food into the old over 7–10 days. A cat that refuses food entirely for more than 24 hours needs a vet — prolonged fasting can trigger hepatic lipidosis, a serious liver condition, especially in overweight cats.

Sources: AAFCO, AAFP feline feeding guidelines, Cornell Feline Health Center. Last reviewed October 2026.