+Plus Adult Small Breed Lamb & Rice Formula Dry Dog Food, 15-lb bag
Graded by The Sniff System
Purina ONE +Plus Adult Small Breed Lamb & Rice Formula is a dry food for adult small breed dogs, featuring lamb as its first ingredient.
The protein quality is reasonable, with lamb providing solid amino acid coverage. The formula is also inferred to meet AAFCO adult maintenance standards, though the verbatim statement isn't published by the retailer.
One thing to note is the absence of a declared omega-3 source. Ingredients like fish oil, salmon oil, or algae oil are not present in the formula.
Good fit for adult small breed dogs. Less ideal if you prioritize a food with a clear omega-3 source.
Summary written by The Sniff System from the data above. Same rubric, same drivers, expressed in English.
The FDA's 2019 investigation update on diet-associated DCM included 13 reported cases in Cavalier King Charles Spaniels, making them one of the top 15 most frequently reported breeds at that time (FDA, 2019) . Strong fit for adult Cavalier King Charles Spaniels navigating diet-associated DCM concerns. Lamb anchors position 1, with zero pulses in the top 15.
Looking at this for adult Cavalier King Charles Spaniels or Cavalier King Charles Spaniels with diet-associated DCM concerns ? We are building dedicated pages for these combinations.
Auto-matched from this product's measurements (ingredients, life stage, calorie density) to a breed archetype. Not a substitute for vet input on your specific dog.
Research informing this analysis
MethodologyThe Sniff System grades this product against 3 cited studies relevant to its profile. Each link opens the original source.
- FDA, 2022epidemiology · breed predisposition· cited in 4 claims
- FDA, 2019cardiac · diet composition· cited in 3 claims
- NRC, 2006nutrient bioavailability
Every claim on Sniff traces to a source. If you find a citation that's wrong, outdated, or misapplied, tell us.
At 59/100, this formula lands mid-pack. The lift comes from protein quality, worth 18.5 points to the final number: Reasonable protein quality. lamb delivers solid amino acid coverage. Where it lost ground: fat quality, costing 8 points. No declared omega-3 source. Fish oil, salmon oil, and algae oil all absent. This formula sits 1.0 points below the B-tier line. The most direct lever is fat quality.
Reasonable protein quality. lamb delivers solid amino acid coverage.
AAFCO formulation inferred from declared adult maintenance. Verbatim statement not published by retailer.
No declared omega-3 source. Fish oil, salmon oil, and algae oil all absent.
- Lowest fat quality in Purina ONE's lineup (4/16)
- Top 5% for crude fiber in dry kibbles (11.9% DMB)
- Bottom 2% for carb quality in Purina ONE's lineup (9/16)
Computed against the rest of our catalog. Percentiles refresh on each catalog update.
Similar dog foods worth considering
Three lenses on products with formulation profiles similar to this one.
Purina ONE +Plus Adult Joint Health Formula Dry Dog Food, 31.1-lb bag
Scores 7 points higher with a similar formulation profile.
Purina ONE Natural Adult Chicken & Rice Formula Dry Dog Food, 40-lb bag
$1.48/lb vs your seed's $2.20/lb (33% less) at a comparable score.
Purina Pro Plan Puppy Small Breed Chicken & Rice Formula Dry Dog Food, 6-lb bag
Chicken instead of lamb, 1 point higher, different brand.
Surfaced from a vector similarity search across 3,491 scored dog foods. How this works.
Read why each ingredient is good or bad for dogs.
- 1protein animallamb
Real meat. Often used for dogs with chicken or beef sensitivities. Slightly higher fat content than chicken.
Position 1: primary protein source. After cooking removes water, this may drop in proportional weight, but it anchors the recipe.
- 2protein animalchicken meal
Chicken with the water cooked out. Per pound, packs more protein than fresh chicken. See why →
Position 2: co-primary protein. Two named animal proteins in the top 2 is a strong protein build.
- 3grainrice
Generic rice. Could be white or brown, the label doesn't say. Brown rice would be specified if it were.
Position 3: major carbohydrate source.
- 4corn protein meal
Concentrated corn protein. Similar in role to corn gluten meal, pads the protein number on the label without matching meat amino acids.
Position 4: supporting grain. Smaller contribution to the carb deck.
- 5grainwhole grain corn
Whole corn with the kernel intact. Decent fiber and B vitamins, though it can crowd out meat in cheaper recipes.
Position 5: supporting grain. Smaller contribution to the carb deck.
- 6protein plantsoybean meal
Concentrated soy protein. Cheap plant protein that pads the label number, common in budget formulas.
Position 6: moderate plant-protein boost. Less likely to materially shift the protein profile.
- 7grainwheat
Whole wheat. Fine for most dogs, though a portion are sensitive. Not a quality concern, just a fit-for-your-dog question.
Position 7: supporting grain. Smaller contribution to the carb deck.
- 8beef fat preserved with mixed tocopherols
Position 8: supporting protein. Modest contribution to total protein weight.
- 9oat meal
Alternate spelling of oatmeal. Gentle whole grain, steady carb energy, soluble fiber.
- 10glycerin
Humectant used in soft-moist foods to keep them chewy. Safe in moderation but a signal of a processed semi-moist product.
- 11othernatural flavor
Legal term for animal-derived flavoring, usually hydrolyzed liver or broth. Adds taste, says nothing about quality.
- 12soybean oil
Plant oil. High in omega-6, which is required but commonly oversupplied. Fine in moderation.
Position 12: trace fat. Below the level that materially shifts the fat profile.
- 13mono and dicalcium phosphate
Source of calcium and phosphorus. Standard inclusion in complete dog foods.
- 14mineralsalt
Sodium chloride. Required at small doses for normal physiology. Not a quality concern in standard amounts.
- 15mineralcalcium carbonate
Source of calcium. Functional. Required in complete dog foods, especially those without bone-in meat meals.
- 16mineralpotassium chloride
Required mineral. Sometimes used as a salt substitute. Standard inclusion in complete diets.
- 17vegetablecarrots
Real vegetable. Fiber, beta-carotene, and a small amount of antioxidant value.
- 18dried peas
Cheap protein bulk. Fine in small amounts, but when peas stack with lentils and chickpeas in the top ingredients, it's the pattern the FDA flagged in its heart-disease investigation. See why →
- 19supplementcholine chloride
Essential nutrient for liver and brain function. Standard inclusion in complete dog foods.
- 20malted barley extract
- 21supplementtaurine
Amino acid critical for heart health. Especially important in grain-free or pulse-heavy formulas where natural taurine precursors run thin.
- 22mineralzinc sulfate
Inorganic zinc. Effective at AAFCO doses but less well-absorbed than chelated forms like zinc proteinate.
- 23mineralferrous sulfate
Inorganic iron. Standard mineral source. Iron proteinate is the gentler, better-absorbed premium form.
- 24mineralmanganese sulfate
Inorganic manganese. Functional but less well-absorbed than the chelated proteinate form.
- 25mineralcopper sulfate
Inorganic copper. Standard, effective at small doses. Premium formulas tend to use copper proteinate instead.
Showing first 25 of 28. Position 1-5 has the largest weight in the recipe.
23 of 25 ingredients have a curated note. Coverage grows over time.