r/d Weight Reduction/Management Chicken Flavor Dry Dog Food, 27.5-lb bag
Graded by The Sniff System
Hill's Prescription Diet r/d Weight Reduction/Management Chicken Flavor is a dry dog food formulated for weight reduction and management, with chicken by-product meal as a primary protein.
This formula has undergone AAFCO feeding trials, which is a strong indicator of nutritional adequacy. It also includes organ meat in the form of chicken and pork liver flavors, which adds diverse, high-bioavailability protein to the diet.
The formula is plant-protein dominated, with whole grain corn listed as the first ingredient. Nothing concerning in the deck regarding flagged ingredients.
Good fit for dogs needing weight reduction or management. Less ideal if you prefer a formula with animal protein as the primary ingredient.
Summary written by The Sniff System from the data above. Same rubric, same drivers, expressed in English.
Strong fit for adult Labrador Retrievers and similar active sporting breeds navigating weight management. At 242 kcal/cup this formula runs on the lean side, with crude fiber at 16% (above the catalog median, supports satiety). The landmark 14-year Purina Lifespan Study on 48 Labrador Retrievers demonstrated that dogs fed 25% fewer calories lived a median of 1.8 years longer and delayed the onset of chronic diseases. The 2014 AAHA Weight Management Guidelines define overweight as a Body Condition Score (BCS) of 6-7 on a 9-point scale. A score of 8 or 9 indicates obesity, representing 20-30% and >30% above ideal body weight, respectively (Brooks et al., 2014) .
Looking at this for adult Labrador Retrievers or Labrador Retrievers with weight management ? 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.
- Brooks et al., 2014diagnostic · protocol · satiety· cited in 5 claims
- APOP, 2023prevalence
- Raffan et al., 2016genetics
Every claim on Sniff traces to a source. If you find a citation that's wrong, outdated, or misapplied, tell us.
Sniff scored this formula 55/100, landing in C-tier (acceptable-with-notes). The biggest contributor was AAFCO compliance (+8 points): AAFCO feeding trial substantiation for not stated. The biggest detractor was protein quality (-17.5 points): Plant-protein-dominated formula. whole grain corn as the #1 ingredient. The gap to B-tier is small (5.0 points). Addressing protein quality would likely close it.
AAFCO feeding trial substantiation for not stated.
Includes egg, named fish, or organ meat for diverse high-bioavailability protein.
Plant-protein-dominated formula. whole grain corn as the #1 ingredient.
- Lowest caloric density in Hill's Prescription Diet's lineup (242 kcal/cup)
- Top 1% for crude fiber in grain-inclusive dry kibbles (17.8% DMB)
- Bottom 3% for DMB fat in grain-inclusive dry kibbles (7.2%)
Computed against the rest of our catalog. Percentiles refresh on each catalog update.
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Scores 20 points higher with a similar formulation profile.
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$3.72/lb vs your seed's $4.65/lb (20% less) at a comparable score.
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.
- 1grainwhole grain corn
Whole corn with the kernel intact. Decent fiber and B vitamins, though it can crowd out meat in cheaper recipes.
Position 1 grain: primary carbohydrate base. This is a grain-inclusive formula with whole grain corn as the dominant carb.
- 2protein plantcorn gluten meal
Concentrated corn protein. Inflates the protein percent on the label without matching meat-quality amino acids.
Position 2: plant protein in the top 5. Stacked with animal protein, can inflate the crude protein number without matching the amino-acid quality of named animal sources.
- 3protein animalchicken by-product meal
Ground organs, bone, and tissue. Nutritionally dense, especially the liver and gizzard fractions. Named species ('chicken') is what matters. Generic 'poultry by-product meal' is the one to worry about. See why →
Position 3: significant protein contributor. Adds amino-acid diversity to the top of the deck.
- 4fiberpowdered cellulose
Plant fiber, often from wood pulp. Cheap bulk filler. Not harmful, but a tell that the recipe is reaching for inexpensive bulk.
Position 4: functional fiber for digestion or satiety.
- 5protein plantsoybean meal
Concentrated soy protein. Cheap plant protein that pads the label number, common in budget formulas.
Position 5: plant protein in the top 5. Stacked with animal protein, can inflate the crude protein number without matching the amino-acid quality of named animal sources.
- 6soybean mill run
- 7chicken liver flavor
Hydrolyzed chicken liver used as a flavor enhancer. Real ingredient, used in tiny amounts for palatability.
Position 7. Functional organ inclusion. Adds amino acids and micronutrients even at smaller weight.
- 8fiberdried beet pulp
Soluble fiber from sugar-beet processing. Sometimes treated as a filler, but it's actually one of the better fiber sources in kibble. See why →
Position 8: functional fiber for digestion or satiety.
- 9pork liver flavor
Hydrolyzed pork liver used as a flavor enhancer. Same role as chicken liver flavor.
Position 9. Functional organ inclusion. Adds amino acids and micronutrients even at smaller weight.
- 10soybean oil
Plant oil. High in omega-6, which is required but commonly oversupplied. Fine in moderation.
Position 10: trace fat. Below the level that materially shifts the fat profile.
- 11lactic acid
Natural acid used as a mild preservative and pH adjuster. Found in fermented foods too. Safe at typical inclusion.
- 12caramel color
Artificial coloring made by heating sugars. Cosmetic. Some forms contain trace 4-MEI, a compound the IARC lists as possibly carcinogenic.
- 13fatflaxseed
Plant source of omega-3. Helpful for skin and coat, though dogs absorb omega-3 from fish more efficiently.
Position 13: trace fat. Below the level that materially shifts the fat profile.
- 14fatchicken fat
Despite the name, a high-quality energy source. Concentrated calories plus essential fatty acids like linoleic acid. See why →
Position 14: trace fat. Below the level that materially shifts the fat profile.
- 15supplementl-lysine
Essential amino acid. Plant-protein-heavy formulas sometimes add it to round out the amino acid profile.
- 16mineralcalcium carbonate
Source of calcium. Functional. Required in complete dog foods, especially those without bone-in meat meals.
- 17mineralpotassium chloride
Required mineral. Sometimes used as a salt substitute. Standard inclusion in complete diets.
- 18supplementcholine chloride
Essential nutrient for liver and brain function. Standard inclusion in complete dog foods.
- 19potassium citrate
Source of potassium. Sometimes added in urinary-support formulas to help manage urine pH.
- 20mineralsalt
Sodium chloride. Required at small doses for normal physiology. Not a quality concern in standard amounts.
- 21supplementdl-methionine
Essential amino acid. Often added when plant proteins dominate, since methionine is naturally lower in pulses than meat.
- 22mineralmanganese sulfate
Inorganic manganese. Functional but less well-absorbed than the chelated proteinate form.
- 23mineralferrous sulfate
Inorganic iron. Standard mineral source. Iron proteinate is the gentler, better-absorbed premium form.
- 24zinc oxide
Inorganic zinc. Cheapest mineral form on the market. Functional but less bioavailable than chelated alternatives.
- 25mineralcopper sulfate
Inorganic copper. Standard, effective at small doses. Premium formulas tend to use copper proteinate instead.
Showing first 25 of 32. Position 1-5 has the largest weight in the recipe.
24 of 25 ingredients have a curated note. Coverage grows over time.