Why a Structured Evaluation Matters

Choosing a new pet food is rarely as straightforward as picking the bag with the most appealing packaging. The US pet food market is large and loosely regulated compared to human food, meaning marketing claims — "premium," "natural," "holistic" — carry no standardized legal definition. Without a systematic approach, it's easy to be guided by branding rather than nutrition.

This checklist is designed to cut through that noise. Whether you're switching because of a recall, a life-stage change, a health condition, or simple curiosity, working through each category below will help you make an informed comparison. For a deeper dive into decoding the label itself, see our guide on reading a pet food label without getting lost in the fine print.

Consult Your Vet for Medical Dietary Needs

If your pet has a diagnosed health condition — such as kidney disease, diabetes, food allergies, or pancreatitis — do not change their diet based on this general checklist alone. Therapeutic or prescription diets are formulated to specific medical parameters and should only be changed or introduced under direct veterinary guidance.

What You'll Need

Before you begin, gather the following so you can evaluate the food systematically rather than relying on memory.

Required

The pet food packaging or label

Provides the AAFCO statement, ingredient list, guaranteed analysis, and feeding guidelines you'll be evaluating.

Required

FDA pet food recall database

Used to check whether the manufacturer or specific product has been subject to a recall.

Required

Your pet's current veterinary records

Needed to cross-reference your pet's life stage, weight, and any diagnosed health conditions against the new food's specifications.

Optional

A nutritional calculator or dry-matter-basis worksheet

Helps convert guaranteed analysis figures to a dry matter basis when comparing wet and dry food formulas.

Optional

Manufacturer's website or customer service contact

Used to verify sourcing transparency, nutritionist involvement, and production facility ownership.

The Evaluation Checklist

Work through each group in order. Items marked must are non-negotiable from a nutritional safety standpoint. Should items are strongly recommended, and nice-to-have items add an extra layer of confidence without being strictly required.

Regulatory & Nutritional Adequacy

Locate the AAFCO nutritional adequacy statement on the label and confirm it matches your pet's current life stage (growth, adult maintenance, or all life stages). Must
Verify the statement specifies how adequacy was established — either by formulation to AAFCO nutrient profiles or by passing an AAFCO feeding trial; feeding trial data is generally considered more rigorous. Must
Check that the food is formulated for the correct species — dog and cat nutritional requirements differ significantly and are not interchangeable. Must
Confirm the product carries a valid lot number and expiration date, indicating it is properly tracked for recall purposes. Should

Ingredient Quality & Transparency

Review the first five ingredients — these make up the largest portion of the formula by weight and should include a named animal protein source (e.g., chicken, salmon, beef) rather than a generic "meat" or "poultry" listing. Must
Look for named fat sources (e.g., chicken fat, sunflower oil) rather than unspecified "animal fat," which signals lower sourcing transparency. Should
Check the ingredient list for excessive fillers — ingredients with very low nutritional value that appear high on the list may indicate a lower-quality formulation. Should
Assess whether the manufacturer discloses country of origin for key ingredients, particularly proteins and any added vitamins or minerals. Nice to have

Guaranteed Analysis & Nutrient Balance

Review the guaranteed analysis panel for minimum crude protein, minimum crude fat, maximum crude fiber, and maximum moisture to ensure they align with your pet's health requirements. Must
For pets with specific health concerns (kidney disease, obesity, food sensitivities), confirm the macronutrient profile has been reviewed or approved by your veterinarian before purchasing. Must
Calculate the dry matter basis nutrient percentages if comparing wet and dry foods — moisture content can make raw percentages misleading at first glance. Should

Life-Stage & Breed Suitability

Confirm the food is appropriate for your pet's current life stage — puppy and kitten formulas have higher protein, fat, and mineral requirements than adult maintenance diets. Must
For large-breed puppies, verify the calcium-to-phosphorus ratio is within ranges recommended for controlled skeletal development; excess calcium can contribute to orthopedic issues in large breeds. Must
Consider breed-specific or size-specific formulas if your pet has documented health predispositions, and discuss suitability with your vet. Nice to have

Manufacturer Accountability

Research whether the brand has issued any recalls in the past five years and review the nature of those recalls (pathogen contamination vs. labeling error, for example). Should
Determine whether the manufacturer employs a full-time, board-certified veterinary nutritionist involved in formula development — this information is often available on the company's website. Should
Check whether the manufacturer owns its production facilities or co-manufactures at third-party plants, as this affects quality-control oversight. Nice to have

Once you've completed the checklist and selected a food, remember that even a nutritionally superior formula needs to be introduced slowly. Our article on switching your pet to a new food without upsetting their stomach explains how to manage the transition step by step.

Don't Rely on Marketing Claims Alone

Terms like "premium," "natural," "holistic," and "human-grade" are not regulated by any federal standard in US pet food labeling. A food can carry all of these descriptors and still fall short nutritionally. Always ground your evaluation in the AAFCO statement, the guaranteed analysis, and the ingredient list — not the front-of-pack messaging.

After the Switch: Monitoring Your Pet

Evaluation doesn't end when you open the first bag. The weeks following a food change are an important observation window. Watch for changes in stool consistency, energy levels, coat condition, and appetite. Subtle shifts — a duller coat, intermittent loose stools, or unexpected weight change — can signal that the new formula isn't meeting your pet's individual needs, even if it passed every label test.

For a full breakdown of what to watch for, see signs your pet's diet may not be meeting their nutritional needs. For broader context on pet wellbeing, our Pet Health & Care hub covers preventive care, veterinary guidance, and more.

This article is for general informational and educational purposes only and does not constitute veterinary or dietary advice. Always consult a licensed veterinarian before making significant changes to your pet's diet, particularly if your animal has an existing health condition.