Questions to Ask a Dog Food Company About Its Quality Testing

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Who formulated this diet, and who checks it every day?
Was this food tested by feeding, by formula, or both?
What do you test in the bag I actually buy?
Where does your evidence live in writing?
What should I do with the answers?

Flip the bag over and call the number on the back panel. Ask for nutrition, not marketing, and write down names and dates.

In day-to-day practice I tell owners to judge a company by how quickly it answers three things: who formulated the diet, how it was tested, and what happens when a batch misses spec. A brand that can name a full-time nutritionist, describe its feeding trials or nutrient analysis, and explain its hold-and-release process supports steady feeding. A brand that deflects may help maintain sales, but not your dog’s gut.

A 4-year-old, 52-pound mixed-breed dog came in for soft stool after his owner switched to a boutique grain-free kibble on a friend’s recommendation. The owner had saved the bags from 6 weeks of gradual transition, with notes from 14 meals showing stool scores sliding from firm to pudding-soft by night 10. The label listed exotic proteins and no feeding-trial statement, and customer service could not name a nutritionist when she called for help. We moved him to a diet with a complete nutrient profile and a named manufacturer, and his stools firmed up within 5 days on the new plan.

Who formulated this diet, and who checks it every day?

Ask for a name and a credential. You want a full-time PhD animal nutritionist or board-certified veterinary nutritionist on staff, not a consultant who reviews recipes twice a year.

Ask this way:

Who formulates your diets, and are they full-time?
Who manufactures the food — do you own the plant or use a co-packer?
What is the plant’s food-safety certification?

Own the follow-up. If they use a co-packer, ask how they audit that plant and how often. Good answers sound boring: scheduled audits, swab testing, pest control logs. Vague answers sound shiny: artisan kitchens, human-grade love.

What does a strong answer sound like?

Listen for specifics about daily checks. In practice, companies that support consistent nutrition can tell you how they verify incoming ingredients, calibrate scales, and hold finished product until lab results clear.

That same label-reading habit helps with supplements, too. If a powder lists a proprietary blend with no amounts, our explainer on Proprietary Blend Versus Fully Disclosed Ingredients on Dog Probiotic Labels walks through what to ask next.

Was this food tested by feeding, by formula, or both?

This is the decision point on the bag. Look for the nutritional adequacy statement, then ask what sits behind it.

AAFCO sets the nutrient profiles and feeding-trial protocols that U.S. labels reference, and learning those two pathways helps you decode the small print. A formulated-to-meet statement means the recipe was calculated to meet the profile. An animal-feeding-tests statement means dogs actually ate it under protocol and were monitored.

Do this in order:

Read the adequacy statement word for word.
Ask whether feeding trials were done for this exact recipe and life stage.
Ask for digestibility data and how many dogs completed the trial.

Be honest where the preventive evidence is thin: a feeding trial does not guarantee your dog will thrive, and a formulated diet is not automatically inferior. In day-to-day practice, I prioritize trials for growth and all-life-stage foods because puppies show gaps fast, and I accept well-documented formulated adult-maintenance diets from transparent makers.

Dog standing indoors — A dog standing in even indoor light. Photo by SHVETS production

A client tried to save money by rotating among three unlabeled bulk-bin kibbles from a feed store, figuring variety would balance out. Over about 3 months she cycled through 9 different scoops with no lot numbers, and her senior Beagle dropped from a steady routine of 2 walks per day to lagging after half a block. Bloodwork showed no emergency, just weight loss and flat energy, and none of the bins had an adequacy statement we could photograph. We picked one complete adult food with a lot code we could track, weighed meals for 21 nights straight, and his walk distance crept back up.

What do you test in the bag I actually buy?

Formulation is theory. Batch testing is proof. Ask what gets measured after cooking, not just on paper.

Push for these four:

Finished-product nutrient analysis — ask which nutrients and how often per lot
Pathogen and toxin screens — Salmonella, mycotoxins, heavy metals where relevant
Palatability and stool quality monitoring — how complaints trigger review
Shelf-life validation — how they set the best-by date

The FDA oversees pet-food safety reporting and recalls in the U.S., so ask how the company tracks complaints and when it notifies customers. You want a lot code on every bag, a retained sample from that lot, and a clear recall plan. If they cannot explain how to read the date code, keep shopping.

How do I read a lot code and a recall answer?

Ask them to decode your bag while you are on the phone. Write down the plant code, production date, and best-by date.

Then ask: have you had a recall in the last two years, and what changed? A forthright answer supports trust. Evasion does the opposite. The same skepticism belongs on additive lists — our guide to Red Flag Fillers to Avoid on a Dog Supplement Ingredient List shows how to spot pretty labels with thin formulas.

Where does your evidence live in writing?

Ask where you can read it yourself. Strong companies publish lot-level certificates, typical nutrient analyses beyond the guaranteed minimums, and calorie content by measurement.

The WSAVA nutrition guidelines give owners and veterinarians a checklist for evaluating manufacturers, including staffing, research, and quality-control questions. Bring that one-page mindset to the call and check answers against what you see.

Short paragraph that matters: keep notes. Save the bag photo, lot code, and start date.

A retired couple feeding a 9-year-old, 18-pound Cavalier with early heart murmur worried that every commercial food felt too salty and too processed, and they were ready to home-cook from a blog recipe. They brought a 10-day food log with weights in grams, plus a printout showing 1,320 mg sodium per 1,000 kcal that scared them. We compared three company replies side by side, picked the one that shared a full typical analysis and a cardiology consult line, and kept the home-cooked idea on hold until a nutritionist could balance it. The usual advice to just pick a trial-tested kibble had to bend toward sodium tracking and vet-to-company dialogue first.

What should I do with the answers?

Score the call in five minutes. Keep companies that name staff, describe testing frequency, decode your lot code, and send documents. Drop companies that rely on slogans.

If your dog has itchy skin, chronic soft stool, or weight loss that lasts more than a few days despite a careful transition, bring your notes and bag photos to your veterinarian before you keep rotating foods. Prevention works best when the diet history is specific.

So what would I buy from this shelf — and what would make me put the bag back?

Frequently asked questions

What is the single most important question to ask a dog food company?

Ask who formulates the diets and whether that person is full-time with nutrition credentials. Then ask whether this exact recipe was tested in AAFCO feeding trials or only formulated to meet profiles.

How do I know if a dog food batch was actually tested?

Read the lot code and best-by date, then ask what finished-product tests run on each lot — nutrients, pathogens, and mycotoxins at minimum — and whether product is held until results clear.