Buying Guide

How to choose the right pet food

Pet food aisles are overwhelming by design. This guide cuts through the marketing to help you understand what actually matters — and what doesn't — when choosing food for your dog or cat.

Start with life stage

The single most important factor in choosing pet food is matching it to your pet's life stage. Puppies and kittens, adults, and seniors have meaningfully different nutritional needs.

  • Puppies & kittens — Need higher protein and fat, plus specific minerals (calcium, phosphorus) for bone development. Look for "growth" or "all life stages" on the AAFCO statement.
  • Adults — Maintenance formulas. Most quality adult foods work well for healthy adult pets.
  • Seniors — Reduced calories, joint support (glucosamine, omega-3s). Some vets prefer keeping healthy seniors on adult food; ask yours.

Tip: Always check the AAFCO nutritional adequacy statement on the package. It tells you the life stage the food is designed for.

Understanding ingredients

Ingredients are listed by weight before cooking. The first five ingredients make up the bulk of the food — they matter most.

What to look for

  • Named meat as the first ingredient (chicken, salmon, beef — not "poultry" or "meat")
  • Named fat sources (chicken fat, salmon oil)
  • Whole vegetables and fruits as supplementary ingredients
  • Mixed tocopherols as a natural preservative

What to avoid

  • Artificial preservatives: BHA, BHT, ethoxyquin
  • Artificial colors (Red 40, Yellow 5/6, Blue 2)
  • Corn syrup or added sugars
  • Generic animal fat or unnamed protein sources
  • Propylene glycol (in cat food especially)

Use our Ingredient Decoder to look up any specific ingredient.

Dry, wet, or fresh?

Dry kibble

Convenient, affordable, and widely available. Good-quality dry food (look for named meat first, no artificial preservatives) is nutritionally complete and works well for most healthy pets. The main downside is low moisture content — cats especially benefit from added water intake.

Wet / canned food

Higher moisture content (70–80% water), which supports kidney health and hydration — particularly beneficial for cats. Often more palatable for picky eaters. More expensive per calorie than dry food.

Fresh / refrigerated

Human-grade ingredients, minimal processing, high digestibility. Best option ingredient-quality-wise, but significantly more expensive ($60–200+/month depending on pet size). Worth considering for pets with chronic digestive or skin issues.

Tip: A mix of dry and wet food is a practical middle ground — dry for convenience and dental benefits, wet for hydration and palatability.

Reading the AAFCO statement

Every complete pet food must carry an AAFCO (Association of American Feed Control Officials) nutritional adequacy statement. It looks like:

"[Brand] is formulated to meet the nutritional levels established by the AAFCO Dog Food Nutrient Profiles for all life stages."

Two ways a food can qualify:

  1. Formulated to meet — The recipe was calculated to hit minimum nutrient profiles. Never tested on live animals.
  2. Animal feeding tests — The food was actually fed to animals in controlled trials and proven to sustain health. This is the gold standard.

Both are legal and common. "Feeding tests" is preferable when you can find it.

Budgeting for pet food

You don't need to spend the most to feed your pet well. Many excellent dry kibbles land in the $40–80/month range for a medium dog or $25–50/month for a cat.

  • Under $30/mo — Limited options at this price; prioritize brands with named meat sources and no artificial preservatives.
  • $30–$80/mo — The sweet spot for most pets. Many reputable brands in this range.
  • $80–$150/mo — Premium dry and entry-level fresh. Meaningful quality improvement over budget options.
  • $150+/mo — Fresh food territory. Best ingredients, highest digestibility, highest cost.

Tip: Subscription delivery options often save 5–35% compared to one-off purchases. For food you reorder monthly anyway, subscribing almost always makes sense.

Switching foods safely

Changing pet food abruptly often causes digestive upset — loose stools, gas, or vomiting. Transition gradually over 7–10 days:

  1. Days 1–3: 75% old food, 25% new food
  2. Days 4–6: 50% old, 50% new
  3. Days 7–9: 25% old, 75% new
  4. Day 10+: 100% new food

Go slower if your pet has a sensitive stomach.

When to ask your vet

General feeding guidelines apply to healthy pets. Consult your veterinarian if your pet has:

  • Kidney, liver, or heart disease
  • Diabetes or weight management issues
  • Confirmed food allergies or intolerances
  • Recurring digestive problems
  • Any chronic health condition

Therapeutic diets prescribed by vets are specifically formulated for medical conditions and aren't covered by this guide.

Ready to find food for your pet? Take the 5-question quiz →