Home / Dog food / Purina ONE / Purina ONE Lamb & Rice Formula Dry Dog Food
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Purina ONE Lamb & Rice Formula Dry Dog Food
A feeding-trial-validated, lamb-first dry food that's denser than 37% (you feed fewer cups). We don't have a cost per day for this food yet.
THE FACTS, ONE SENTENCE — data as JSON · reference dog 40 lb · updated 2026-10-19
The evidence
The Verified Label
Every food on this site gets this exact panel — same fields, same order, sourced from the official label — so brands finally become comparable. Dots show where this food sits among all 494 dry foods we've verified.
verified 2026-10-19
Composition — dry-matter basis
why dry matter
Calories & cost — for your 40-lb adult dog
No cost per 1,000 kcal: the label we read gives no calorie count, so we can't work out the price per calorie. Serving math uses standard veterinary energy formulas — see the formula.
Standards & ingredients
what this means
why unknown
Safety
Source: official label source (official)· price: Amazon, 2026-10-19 · anchors: 494 verified dry dog foods (360 priced) · how to read this label
The fit
For your dog, specifically
Checked for a 40-lb adult with a sensitive stomach — the same published criteria our finder uses. Change your dog above and these update.
The source material
The full ingredient list
Every flag above is computed from this list. Why order is by pre-cooking weight, and how splitting bends it →
Lamb, rice, whole grain corn, whole grain wheat, chicken by-product meal, corn protein meal, soybean meal, beef fat preserved with mixed tocopherols, glycerin, natural flavor, calcium carbonate, mono and dicalcium phosphate, dried chicory root, salt, soybean oil, potassium chloride, dried carrots, dried peas, choline chloride, malted barley extract, DL-Methionine, Vitamins [Vitamin E supplement, niacin (Vitamin B-3), thiamine mononitrate (Vitamin B-1), calcium pantothenate (Vitamin B-5), Vitamin A supplement, riboflavin supplement (Vitamin B-2), Vitamin B-12 supplement, pyridoxine hydrochloride (Vitamin B-6), folic acid (Vitamin B-9), menadione sodium bisulfite complex (Vitamin K), biotin (Vitamin B-7), Vitamin D-3 supplement], Minerals [zinc sulfate, ferrous sulfate, manganese sulfate, copper sulfate, calcium iodate, sodium selenite], L-Lysine monohydrochloride
4 ingredients in this list are ones we hold sourced evidence on , and 1 of them is genuinely contested rather than merely unpopular online.
- Peas · ingredient 18ContestedA pulse (legume) used in many grain-free foods as a plant protein and carbohydrate source. Peas are central to an open FDA investigation, begun in July 2018, into a possible link between diets high in peas, other pulses, and potatoes and canine dilated cardiomyopathy (DCM); 93% of reported products contained peas and/or lentils.
- Mixed tocopherols (natural vitamin E) · ingredient 8Well supportedA blend of vitamin E forms (alpha-, beta-, gamma-, delta-tocopherol) used as a natural-source antioxidant to slow fat rancidity, commonly chosen as an alternative to synthetic preservatives. EFSA concluded that tocopherol-rich extracts are safe for all animal species and the consumer and are efficacious antioxidants in feed.
- By-Product Meal (Meat / Poultry By-Product Meal) · ingredient 5NeutralA rendered concentrate made from clean, non-muscle parts of the carcass (organs, necks, feet, and similar), defined by AAFCO. It is more variable and lower-transparency than a named muscle meal, but it is not inherently unsafe or low-nutrition: controlled feeding trials in dogs report high protein digestibility (roughly 92-95%) for poultry by-product-based diets, and some by-product organs are nutrient-dense.
- Prebiotics (chicory root / inulin, FOS) · ingredient 13NeutralFermentable fibers (chicory-derived inulin and fructooligosaccharides) that feed colonic bacteria and are readily fermented to short-chain fatty acids in dogs. Feeding studies show they shift fecal microbiota composition and are well tolerated at typical inclusion levels, but clear health benefits beyond compositional change are not yet established.
Nutritional twins
Priced close matches
This food has no verified price yet — these are the closest label matches that do.
Label-composition matches only: same species, form, and growth stage; same primary protein where both are known; grain-free preserved; protein within 4 points and fat within 4 points, and estimated carbs within 8 points, on a dry-matter basis. Not a medical or quality recommendation.
The maker
Who makes this — and how they back it up
The five questions the WSAVA nutrition guidelines tell you to ask a pet-food company. Every answer is sourced or marked as an undisclosed gap — never guessed. This is the "is it made competently?" axis that star-rating sites skip.
Nestlé Purina owns and operates its own U.S. factories.
source →Arleigh Reynolds, DVM, board-certified in veterinary nutrition, employed by Nestlé Purina PetCare (maker of Purina ONE).
source →14 of 19 labels we checked carry an AAFCO feeding-trial substantiation statement.
source →The company website blocked our automated check, so we could not read its quality-control page. This is not a "no".
144 PubMed papers (animal/pet filtered) list Nestlé Purina in an author address; we checked 144 and 143 really name the company. A floor, not a total.
source →Full company scorecard, sources, and every SKU we've verified for this brand: Purina ONE brand page →