Few topics in the cat world get as religious as food. Scroll cat Twitter or any cat forum and you'll find passionate advocates for raw, vehement critics of kibble, and a surprising amount of junk science in both directions.
Here's a grounded, vet-informed look at the three main formats, so you can make a reasonable call for your cat, your time, and your budget.
The fundamental: cats are obligate carnivores
This one isn't controversial. Cats must get specific nutrients from animal tissue:
- Taurine (lack of it → heart disease and blindness)
- Arachidonic acid
- Preformed vitamin A (they can't convert beta-carotene)
- Animal-sourced protein
Vegan cat diets are strongly discouraged by mainstream veterinary medicine. Cats are not tiny dogs, and they're definitely not tiny humans.
Dry food (kibble)
Pros
- Cheapest per calorie by a wide margin
- Shelf-stable, bags last months
- Convenient, scoop and pour
- Works with auto-feeders and puzzle feeders
- Easier for picky cats in some cases (flavor coatings)
Cons
- Low water content (~10%), contributes to chronic dehydration in many cats
- Higher carbohydrate content than wet food (often 25–40%), cats aren't built for this
- Doesn't clean teeth (common myth, shattering kibble doesn't scrape)
Best for
- Multi-cat households on a budget
- Cats who need puzzle-feeder enrichment
- Combined with wet food as part of a meal plan
Wet food (canned)
Pros
- High water content (~75%), closer to a natural prey diet
- Higher protein, lower carbs than most dry food
- More filling per calorie, helps with weight management
- Generally better for urinary and kidney health long-term
Cons
- More expensive per calorie
- Spoils quickly once opened (needs refrigeration, 24-hour window)
- Less convenient, no auto-feeders, no free-feeding
- Messy, bowls need daily washing
Best for
- Most cats, as at least part of their diet
- Any cat with urinary history (FIC, crystals)
- Senior cats
- Overweight cats needing higher-volume lower-calorie meals
What to look for on the label
- Named meat as the first ingredient ("chicken," "turkey", not "poultry by-product meal")
- AAFCO statement: "complete and balanced for adult maintenance" (or "all life stages" for multi-cat households with kittens)
- Low carbohydrate, below 10% on a dry-matter basis is good
- Minimal fillers (corn, wheat, soy aren't toxic but aren't ideal)
Raw food
This is where debates get heated. Here's the balanced view.
Pros
- Highest water content and closest macronutrient profile to a natural diet
- Some cats with IBD or food allergies do visibly better on raw
- Smaller, firmer stools
- Healthier coat in many cats
Cons
- Bacterial contamination risk, Salmonella and E. coli are real, for both the cat and humans in the household
- Nutritional balance is hard, DIY raw diets frequently end up deficient in taurine, calcium, or specific vitamins. This can cause serious harm.
- Expensive, commercial raw runs 3–5x the cost of wet food
- Storage and prep time
- Not appropriate for immunocompromised cats, households with very young children, elderly people, or anyone on immunosuppressants
If you want to try raw
- Use a commercial, complete, AAFCO-compliant raw food, not a DIY recipe from a blog
- Look for HPP-treated (high-pressure pasteurized) products, they dramatically reduce pathogen load while preserving nutrition
- Strict food-safety hygiene, separate bowls, sanitize surfaces, wash hands
- Transition slowly over 2+ weeks
- Get buy-in from your vet, a good vet won't refuse to work with you on raw as long as the diet is balanced
What most feline vets actually recommend
The pragmatic middle ground most feline veterinarians land on:
- Wet food as the foundation, 50–100% of calories
- High-quality dry food as a supplement if you want puzzle-feeder enrichment or need to leave food overnight
- Variety of protein sources, rotating chicken, turkey, rabbit, fish (occasionally), reduces risk of developing food sensitivities
- No ethical strong opinions on brand or raw vs. cooked, as long as it's AAFCO-compliant and the cat is doing well on it
How to read cat food labels
- First 3 ingredients tell you most of the story
- "Meat by-product" isn't the villain it's made out to be, it includes nutritious organ meat, but named proteins are still a plus
- "Grain-free" doesn't mean low-carb, it often means grains replaced by potatoes or peas, which are still high-carb
- "Human-grade" is largely marketing
- AAFCO complete and balanced statement is the baseline every food should meet
Red flags in a diet
- Vegan or vegetarian "complete" cat food
- Brands without a veterinary nutritionist on staff
- No AAFCO statement
- DIY recipes from non-veterinary sources
- Any food marketed with fear-based claims about competing foods
The simplest useful upgrade
If you're feeding only dry food: adding one wet meal a day often delivers most of the water and protein benefits people chase with full transitions. It's the cheapest, simplest high-leverage change for most indoor cats.
Cat nutrition isn't one-size-fits-all. A 3-year-old athletic cat and a 14-year-old with kidney disease have different needs. The best diet for your cat is the one they'll eat reliably, your vet signs off on, and you can actually sustain long-term.