Cats are obligate carnivores. They must eat meat to survive. They require taurine absent in plants, preformed vitamin A, and arachidonic acid from animal fat. Understanding what cats actually need makes evaluating cat food much simpler.
What Cats Must Have
Taurine is the most critical nutrient unique to cats. Deficiency causes dilated cardiomyopathy and blindness. Protein should be the primary macronutrient. Moisture is critical because cats evolved in arid environments and have low thirst drive, often becoming chronically dehydrated on dry-only diets.
- Taurine: essential, must come from animal tissue
- High protein: primary energy source for cats
- Moisture: low thirst drive makes wet food important
- Preformed vitamin A: from liver, not beta-carotene
- Arachidonic acid: from animal fat, cannot synthesize
Wet vs Dry Food
Wet food is better for most cats. Higher moisture reduces urinary tract disease risk significantly. The leading cause of emergency vet visits in cats is urinary blockages, strongly associated with chronic dehydration on dry-only diets. Male cats are particularly vulnerable.
Many owners choose dry food for its dental benefits. This is not supported by research. Cats do not chew kibble in a way that meaningfully reduces tartar. Dental hygiene requires brushing or VOHC-approved dental treats, not kibble.
- Wet food: superior hydration, urinary health
- Male cats especially: high UTI/blockage risk on dry only
- Dry food: convenient, but dehydration risk
- Dental health claim: not supported by research
- Transition gradually: sudden wet food switches cause GI upset
Evaluating Cat Food Brands
Use the same WSAVA criteria as dog food. Does the brand employ a full-time veterinary nutritionist? Conduct feeding trials? Publish peer-reviewed research? Royal Canin, Hill's Science Diet, and Purina Pro Plan meet these criteria.
- WSAVA criteria: same evaluation process as dog food
- Royal Canin, Hill's, Pro Plan: meet research standards
- Named meat as first ingredient: chicken, salmon, beef
- Taurine in guaranteed analysis: verify it is listed
- Avoid plant proteins as primary ingredient in cat food
WSAVA-Recommended Cat Food Brands
These brands meet WSAVA criteria: full-time veterinary nutritionist on staff, AAFCO feeding trials completed, published research.
Some links are sponsored — our editorial picks are always independent. Disclosure
🐾 Trusted Cat Care Brands We Recommend
Cats have specific nutritional, behavioral, and health needs. Every brand we recommend here has been evaluated for feline-specific quality, safety, and veterinary credibility.
Why These Brands
- Feline-specific formulations
- Value and affordability
- Consistent quality
About this health information
- This guide is general education from the PetCareHall Editorial Team. It is not veterinary advice, and it cannot diagnose or treat your pet. For symptoms, medication or dosing, talk to your veterinarian.
- If your pet is in distress, contact a veterinarian or an emergency hospital now. In the US, poison hotlines are the ASPCA Animal Poison Control Center, (888) 426-4435, and the Pet Poison Helpline, (855) 764-7661. Fees may apply.
- Last updated: March 2026.
- Primary sources we draw on: AVMA pet owner resources, AAHA, WSAVA global guidelines and FDA Animal & Veterinary. See also our sources page.
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Every guide is researched and written by the PetCareHall Editorial Team using AVMA, AAHA and WSAVA guidance and other published sources. We are not a veterinary practice and this is not veterinary advice.
We draw on AVMA, AAHA and WSAVA guidance and other published research, not trends or marketing.
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