A Vet Tells All

A quick look at the best cat food

• The most researched brands:Purina; <a href="https://www.royalcanin.com/us?rvo_aff=1&rvo_brandid=b72ad6a3-0df3-4aea-991d-02ea8e87f867&rvo_prodid=2821a807-3cdd-440c-939c-ae1083ac08ad&rvo_subid=2821a807-3cdd-440c-939c-ae1083ac08ad&rvo_subid2=%2Fhealth%2Fpet-health%2Fbest-cat-food&correlationId=null” rel=”nofollow noopener” target=”_blank”>Royal Canin; Hill’s Pet Nutrition | Skip to review
• Best wet cat food:Purina Pro Plan Grain-Free Complete Essentials | Skip to review
• Best dry cat food:Purina ONE Whole Body Support Dry Food | Skip to review
• Most affordable cat food:Fancy Feast Classic Pâté | Skip to review
• Best cat food for kittens:Royal Canin Wet Kitten Food | Skip to review
• Best food for senior cats:Purina Pro Plan Adult 11+ | Skip to review
• Best cat food for sensitive stomachs:Hill’s Science Diet Sensitive Stomach & Skin | Skip to review
• Best food for active cats:Iams Proactive Health Healthy Adult Dry Food | Skip to review

Labels, marketing terms, endorsements, and so much more make the pet food market saturated with options. When you’re a first-time pet owner, or even when you already have a pet, you can be overwhelmed with the decision on what to feed them.

I am also a cat owner, and personally, I’m always on Chewy, Amazon, and Reddit to try to figure out which food would fit my cats’ needs, from the picky eater to the one who needs to lose a few pounds.

That’s why I was so excited to chat with our veterinary expert, Dr. Vincent Tavella, and ask him all my burning questions about the best cat food. And what he shared did not disappoint.

Well, we’ve done the research, talked with a vet, and these are some of the best cat food brands on the market.

We share the best cat food brands and products below, and further down, we discuss how we chose them, the standards that apply, and the research necessary that makes them the ‘best’.

Our picks for the best cat food

Note: The ‘best’ cat food is subject to your cat’s individual needs. This article is not intended to be considered as veterinary advice. If you need guidance on which food would benefit your cat’s health, activity level, and life stage, talk with your veterinarian.

The most researched cat food brands

According to our conversation with Dr. Tavella, all pet food brands and products are held to standards by three specific organizations for the following reasons:

1. American Association of Feed Control Officials (AAFCO): provides nutritional and labeling standards industrywide
2. : regulates pet food safety and labeling
3. World Small Animal Veterinary Association (WSAVA): evidence-based guidance for evaluating manufacturers and diets

There are four brands that are commonly suggested by veterinarians because of their adherence to these standards:

• Purina
• Hill’s Pet Nutrition
• Royal Canin
• Iams

Recommending pet nutrition right now is more complex than it has been in years because the science and the public perception are no longer aligned.Vincent Tavella DVM, MPH

There is some skepticism toward these brands, often centered on concerns about price, ingredient quality, and sourcing. In response, pet food marketing has begun to emphasize ingredient lists that are ‘human-grade,’ ‘natural,’ ‘wild,’ or ‘ancestral,’ which is not entirely incorrect.

However, these ingredient traits do not reflect nutritional adequacy, as pets have very specific nutritional requirements that require precise formulations.

“As veterinarians, we are trained to anchor recommendations in diets that meet AAFCO standards and are supported by feeding trials, formulation expertise, and quality control,” Dr. Tavella said.

“[These brands] meet rigorous formulation standards, employ qualified nutrition experts, such as board-certified veterinary nutritionists or PhD animal nutritionists, and conduct feeding trials. From a medical standpoint, these are among the most reliable diets available.”

These are the standards we used to choose the best cat foods, from kitten stage to senior, making sure your cat gets the best nutrition possible.

We are seeing ingredient quality being used as a proxy for diet quality, even though it does not account for formulation accuracy, digestibility, or long-term outcomes. That disconnect is one of the biggest challenges in pet nutrition today.Dr. Tavella

Comparing the best cat food

*Dry matter protein refers to converting the as-fed crude protein analysis to dry matter for consistent comparison between wet and dry food.

Nutrition: The research and standards behind the best cat food

Maybe you’ve heard of or seen some folks feeding their cats raw foods or endorsing ‘human-grade,’ ‘wild,’ or ‘all-natural’ cat food brands that have ‘clean’ ingredients.

These key terms can carry some weight, but Dr. Tavella warns that ingredient quality and sourcing are only one part of a much larger and complex system that is pet nutrition.

A high quality diet for one cat can look completely different to another cat’s due to many factors, like its age, digestibility, health, and more. However, one common factor among all cats is that they need to meet specific nutritional requirements that must be balanced overtime.

Pet nutrition is not intuitive. Pets have very specific nutrient requirements that are difficult to meet without precise formulation, and a diet that looks ‘clean’ or simple on paper can still be incomplete or imbalanced in ways that are not obvious.Dr. Tavella

“Cats have very specific nutrient requirements like taurine, arachidonic acid, preformed vitamin A, and high protein,” Dr. Tavella said. “Meeting those consistently without a properly formulated diet is extremely difficult.”

Dr. Tavella also encouraged using cat food brands that align with WSAVA guidelines in addition to AAFCO standards.

“A cat can be ‘fed’ but still receive a nutritionally unbalanced or poorly tested diet, and over time, that can lead to preventable disease.” Following the WSAVA guidelines ensures that your cat is getting all the nutrients it needs because it has been formulated, studied, quality controlled, and tested by board-certified veterinary nutritionists.

Understanding the life stages of cats

Did you know that the life stages of a cat are in place as nutrition guidelines, not as mandatory biological transitions? From kitten to senior, the range of nutritional needs changes based on the individual cat’s health status, muscle mass, activity level, and whether they have any other health concerns to account for.

Here’s a glance at what life stages are recognized and what each stage prioritizes nutritionally.

*Kitten diets for larger-breed cats (e.g., Maine Coons) can be longer since they mature slower. Talk with a veterinarian to determine the best diet for your cat.

Prescription diets

Cats that have health concerns, dietary restrictions, or sensitivities may require a prescription diet. “These diets are specifically formulated to modify nutrient levels or ingredients in ways that help manage disease and reduce clinical symptoms,” Dr. Tavella shared.

“Veterinary guidance ensures the diet is appropriately matched to the diagnosis, the cat is monitored for response, and adjustments are made as the condition evolves.”

Some health conditions that may require prescription diets include:

• Kidney disease: benefit from diets that contain reduced phosphorous, controlled protein levels, and increased omega-3
  • can help slow kidney disease progression
  • may help reduce clinical signs such as nausea and weight loss
• Urinary issues: alter urine pH, reduce minerals that contribute to stone formation, increase urine dilution
  • can help manage conditions such as struvite urolithiasis and feline lower urinary tract disease
• Food allergies or intolerances: reduce exposure to ingredients that may trigger allergic reactions
  • hydrolyzed or novel protein diets may be prescribed
  • may help monitor allergy symptoms such as itching, ear infections, or gastrointestinal upset
• Gastrointestinal disorders: highly digestible and gentle on gastrointestinal tract
  • fiber and easily digestible ingredients may help ease digestion
  • hydrolyzed or novel protein diets or limited ingredient diets may be prescribed

Indoor cat vs. outdoor cat

Indoor cats and outdoor cats aren’t too different in terms of nutritional needs. The only significant difference is the amount of energy used daily.

If you have an outdoor cat, chances are they are burning more calories, so they need more calorie-dense and evidence-backed options that can help them maintain their condition and energy when they’re outside.

Indoor cats, however, usually have lower activity levels and stressors which makes them at high-risk for obesity. Their diet should also be evidence-backed but they may benefit from lower-calorie foods and weight-control formulas when necessary.

Things to look out for in cat food

With all the brands on the market, it can be challenging (and definitely overwhelming) to look at each recipe or can of food and decide on your fur baby’s nutrition. The WSAVA Global Nutrition Committee has a guide on what to look for and what to avoid on the internet.

And here, we’ll give you some scannable options you can always come back to.

LOOK FOR

• AAFCO adequacy statement. It may be in small print, but it should be there
• ‘complete and balanced’ statement
• ingredients should be clear and have common names clearly visible as well
• crude and guaranteed analysis should be clear and visible
• manufacturer can answer questions related to WSAVA’S Global Nutrition Guidelines
• if the recipe has been formulated with a veterinary nutritionist

AVOID

• marketing claims like ‘ancestral’, ‘wild’, ‘human-grade’, etc.
• any health claims, like ‘cure’, ‘treat’, or ‘prevent,’ on food that is not prescription food for health conditions
• if you don’t see AAFCO anywhere on the packaging, it’s a no
• BHA/BHT and ethoxyquin are older food preservatives that have raised some concerns, although they are generally considered safe at approved levels

Other tips about cat food and diets

Dr. Tavella shared some additional tips about cat food, their diets, and other considerations to keep in mind.

Choosing cat foods

WSAVA guidelines are more compliance-focused than strictly enforced. If you find yourself with a food that matches your cats needs but the food isn’t formulated by veterinary nutritionists, monitor your cats symptoms and make note of any changes. And as always, talk with your vet whenever you have a concern.

For the best long-term care of your cat and to make sure it’s getting the nutrients it needs, try to find a brand that has consulted with a veterinary nutritionist or other qualified nutrition experts, such as board certified veterinary nutritionists or PhD animal nutritionists.

If you get overwhelmed or really can’t pick between two options, talk with your vet. They know your cat and its health, so they can offer guidance on what an appropriate choice would be throughout its various life stages.

Dietary patterns in cats

If you notice your cat has stopped eating, take it seriously. “Most cat owners underestimate how dangerous even short periods of not eating can be,” Dr. Tavella said. “Appetite loss is not benign in cats. What starts as picky eating can become dangerous quickly.”

If your cat hasn’t eaten in 24 to 48 hours, talk with your vet or bring it in for evaluation as soon as possible.

Another point Dr. Tavella stressed is that free-feeding is a major driver of obesity. “The way cats are fed is often just as important as what they’re fed. Free-choice feeding leads to excess calorie intake, reduced activity, and loss of meal structure,” Dr. Tavella shared.

“Overt time, this contributes heavily to obesity, one of the most common conditions in pet cats. Measured meals are generally a better approach than to constant access to food.”

Dietary preferences

“Cats don’t choose food based on what’s ‘healthy’,” Dr. Tavella stated. “They choose based on familiarity.

“Many owners assume their cat prefers a brand because it’s better. In reality, cats are highly neophobic (resistant to new foods) and strongly influenced by early-life exposure.”

Dr. Tavella also mentioned that cats are primarily texture-driven when it comes to food, so they may be more partial to a pâté than to shredded meat. “These attributes contribute to lifelong food fixation and difficulty switching diets, even when medically necessary.”

The bottom line

The world of pet food is full of claims, marketing, and misinformation. Knowing that high quality pet nutrition is defined by biological appropriateness and rigorous safety standards can help keep your cat nutritionally balanced.

Cat food is not always intuitive, either, so consider brands that meet AAFCO standards and have the adequacy statement clearly labeled on the product. Brands or products that align with WSAVA guidelines ensure that the formula has been tested, researched, and nutritionally created for cats by qualified nutrition experts.

Finally, remember that your veterinarian is your best rewhether it’s your first cat or your fifth

Frequently asked questions about the best cat food

Organizations like the American Veterinary Medical Association and the American Animal Hospital Association discourage feeding raw cat food due to the risk of bacterial contamination from pathogens such as Salmonella, Listeria monocytogenes, and Campylobacter.

“Raw diets vary widely in moisture and nutrient content, and they may or may not be complete and balanced,” Dr. Tavella says.

It is extremely difficult to meet cats’ very specific nutrient requirements without a formulated diet. Raw cat food often has higher fat variability and mineral inconsistency. Canned wet food is balanced to AAFCO standards and can be clinically tested and formulated to meet your cats’ nutritional needs.

• onions or garlic
• chocolate
• grapes or raisins
• alcohol
• heavily salted or seasoned foods
• xylitol

The best dry food for cats vary based on your cat’s nutritional needs, health, and lifestyle. If your cat is an indoor cat, a dry food such as Purina ONE Whole Body Support or Iams Proactive Health contains the required nutrients and minerals for your cat’s coat, digestive health, and muscles.

If you have an outdoor cat, you may need a dry food with a higher protein content to help your cat maintain its energy levels when it is outside. Iams Proactive Health also has a high protein content and fiber with prebiotics to support digestion.

The highest-quality cat food varies from cat to cat. It’s important to note that ingredient quality does not mean nutritional adequacy.

Vincent Tavella, DVM, MPH, says, “A diet made from ‘human-grade chicken breast’ can still be nutritionally incomplete if it lacks essential vitamins and minerals.

“There’s a common misconception that ‘human-grade’ means higher quality, safer, or more nutritious. In reality, many non-human-grade ingredients, like organ meats, are among the most nutritionally valuable components of a cat’s diet.”

“Human foods should be treats or supplements, not the nutritional foundation a cat’s diet,” Dr. Tavella says. Because cats have very distinct nutrient requirements, they must have a formulated diet that contains the required minerals and vitamins to keep its prolonged health.

That said, there are several safe human foods that cats can eat.

• plain, unseasoned cooked meat with bones removed
• fully cooked and unseasoned fish is OK occasionally, such as salmon, tuna, and sardines
• plain, cooked, and unseasoned eggs are a good protein source
• steamed pumpkin, carrots, green beans, and peas can add fiber and sometimes help with mild constipation
• plain white rice may be useful for GI upset