Products / Dog Food / Hill's Science Diet

Dog Food · Dry · Adult · Meal

Hill's Science Diet

Hill's Science Diet Perfect Weight Chicken & Brown Rice Recipe Dog Food

View on Hill's Science Diet: official page

28 ingredients28% protein (dry matter)3,189 kcal/kgWhere to buy ↓

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Ingredients

28 ingredients

12 beneficial · 10 contextual · 22 standard

44 classified, including what's inside premixes and blends

Nutritional adequacy

✓ Complete & Balanced

Feeding trials substantiate that this product meets AAFCO nutrient profiles (Adult), brand statement

Brand transparency

4 of 5 disclosed

Pawdit presents manufacturer-declared facts and attributes every note to its published source. We do not rate, grade or rank products. This assessment is generated by an algorithmic methodology based on published sources. It is not a guarantee of product quality or safety. Always consult your veterinarian.

Ingredients

28 ingredients (broken into components where relevant) · tap any for its research notes

What do these mean? ▾

Beneficial. Linked to benefits in published research. Tiers show evidence strength.

Restricted or banned. Restricted or banned by a regulator in at least one country.

Under research review. Being studied or re-evaluated by researchers or regulators.

Contextual. Not flagged, but there is a note worth reading.

Standard. Everyday components like vitamins and minerals.

Not yet classified. Not in our dictionary yet. Always still listed.

Counts include what's inside compound entries like vitamin premixes, so they can add up to more than the label's ingredient count.

1ChickenNamed single-species whole meat▾

● Beneficial (well-established)Whole meat from a named animal species. Both the species and the form are identified, which supports traceability and allergy checking. Published nutrition references associate named whole meats with high protein quality.Sources: AAFCO 2024 · NRC 2006 · Amino acid bioavailability studies

2Cracked Pearled BarleyBarley▾

● Contextual noteA whole grain carbohydrate and fibre source. Provides beta-glucans, a type of soluble fibre associated with gut health benefits.Sources: Veterinary nutrition references

3Brown RiceRice / brewer's rice▾

● Contextual noteA highly digestible carbohydrate. Brewer's rice is a milling by-product but still provides nutritional value.Sources: NRC 2006

4Pea FiberPea protein / pea starch / pea fibre▾

● Contextual noteFractionated legume derivatives that can be used to increase the protein reading on a guaranteed analysis without providing a complete amino acid profile. More relevant than whole peas to the FDA's DCM investigation (2018-2022, no causal link established).Sources: FDA DCM Investigation 2018-2022

5Corn Protein MealCorn / corn gluten meal▾

● Contextual noteA digestible carbohydrate and protein source for most dogs. Commonly characterised as filler in consumer discussions, but veterinary nutrition research supports its nutritional value.Sources: AAFCO 2024 · NRC 2006

6Chicken MealNamed species meat meal▾

● Beneficial (well-established)Rendered meal from a named animal species: a concentrated protein source with water and fat removed. The species is identified, which supports traceability and allergy checking.Sources: AAFCO ingredient definitions · Veterinary nutrition references

7Dried Tomato PomaceTomatoes▾

● Standard ingredientA fruit providing lycopene and vitamins.Sources: Nutritional composition data

8Oat FiberOats▾

● Contextual noteA whole grain carbohydrate source rich in soluble fibre (beta-glucans). Generally well-tolerated and considered a high-quality grain for pets.Sources: Veterinary nutrition references

Show all 28 ingredients ▾

9Chicken Liver FlavorNamed organ meats▾

● Beneficial (well-established)Organ meat from a named animal species, with both the species and the organ identified. Published nutrition references describe named organ meats (e.g. chicken liver, beef heart) as nutrient-dense, naturally rich in vitamins A and B12, iron, copper, and folate. Where the label names only the organ (e.g. "liver"), the animal species is not identified.Sources: NRC 2006 · Nutritional composition data

10FlaxseedFlaxseed / flaxseed oil▾

● Beneficial (supported)A plant-based source of omega-3 (ALA), fibre, and lignans. Note: dogs have limited ability to convert plant ALA to the more bioactive EPA/DHA found in marine sources.Sources: Bauer 2011

This product lists 2 separate rice derivatives (rice, brown rice). When listed separately, each appears lower on the ingredient list than they would if combined as a single entry.

Nutrient analysis

dry matter, the manufacturer's basis · compared to AAFCO adult dog maintenance minimums

✓Feeding trials substantiate that this product meets AAFCO nutrient profiles (Adult)"Animal feeding tests using AAFCO procedures substantiate that Hill's Science Diet Adult Perfect Weight Chicken & Brown Rice Recipe Dog Food provides complete and balanced nutrition for maintenance of adult dogs." (brand statement)

Protein28%AAFCO min 18% DM

Fat11%AAFCO min 5.5% DM

Fibre10.3%no AAFCO reference

3,189 kcal/kg≈ 1,334 kJ / 100g energy densityBrand states 3,189 kcal/kg

Also declared on the label

Phosphorus0.75% dry matterbrand statedSodium0.4% dry matterbrand statedPotassium1% dry matterbrand statedMagnesium0.142% dry matterbrand statedOmega-3 (total)0.75% dry matterbrand stated

This manufacturer publishes its analysis on a dry-matter basis (with moisture removed), so the values above are shown on that basis and moisture is not stated. AAFCO minimums are also dry-matter figures, so they compare directly; the comparison is shown for context only. Consult your vet for diet decisions.

Brand transparency

Hill's Science Diet · what the manufacturer discloses, not a rating

Part of Colgate-Palmolive (Hill's Pet Nutrition) · 3 brands on Pawdit

Recall historyon record2019: Global voluntary recall of canned dog food due to excess Vitamin D from supplier error. FDA warning letter. $12.5M settlement. 0 APOG consumer reports.

AS5812 accreditationAustralia's voluntary pet food manufacturing standardnot confirmed

PFIAA membershipPet Food Industry Association of Australiaconfirmed

Quality certificationsconfirmedAAFCO · FDA cGMP

Parent companydisclosedColgate-Palmolive (Hill's Pet Nutrition)

A factual disclosure checklist from public records and the brand's own statements. Items we haven't verified show as not confirmed: a data gap, not a judgment. Are you Hill's Science Diet? Claim your brand to confirm or correct this record.

Where to buy

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11Dried Beet PulpBeet pulp▾

● Beneficial (supported)A well-studied moderately fermentable fibre source associated with stool quality benefits in dogs.Sources: NRC 2006 · Fahey et al. 1990Position on the ingredient list suggests a moderate to small inclusion level.

12Coconut OilCoconut oil / MCT oil▾

● Beneficial (supported)MCT oil is rich in the medium-chain triglycerides (C8 and C10) used in studies of cognitive support in aging dogs. Coconut oil contains some MCTs but is mostly lauric acid, so those findings apply mainly to purified MCT oil.Sources: Pan et al. 2010Position on the ingredient list suggests a moderate to small inclusion level.

13Pork Liver FlavorNamed organ meats▾

14Lactic Acid▾

● Standard ingredientA naturally occurring organic acid used as a preservative or pH regulator.Sources: AAFCO ingredient definitions

15Potassium ChloridePotassium salts▾

● Standard ingredientA standard added potassium (mineral) supplement.Sources: NRC 2006

16L-Lysine▾

● Standard ingredientAn essential amino acid added as a standard supplement.

17DL- MethionineDL-methionine▾

● Contextual noteAn essential amino acid commonly added to pet food. Also functions as a urinary acidifier (lowers urine pH). Veterinary sources note it should be used with caution in pets with kidney disease, pancreatic disease, or liver insufficiency. Not recommended for kittens.Sources: VCA Animal Hospitals · PetMD veterinary reference · NRC 2006

18Carrots▾

● Standard ingredientA root vegetable providing beta-carotene and fibre.Sources: Nutritional composition data

19Iodized SaltSalt▾

● Contextual noteAn essential mineral present in all pet food. Flag only when appearing high on the ingredient list.Sources: NRC 2006

20Lipoic AcidAlpha-lipoic acid▾

● Contextual noteA sulfur-containing antioxidant (also called thioctic acid). In dogs, reviews support antioxidant and anti-inflammatory benefit, well tolerated at low dietary levels (roughly 2.7 to 4.94 mg/kg/day), well below the canine maximum tolerated dose of about 126 mg/kg. Strongly dose-dependent: acute canine toxicity and death have been reported at single doses around 190 to 210 mg/kg. See cat-specific caution.Sources: MDPI Animals 2021 (a-lipoic acid in dog food review) · Hill et al. 2004 cat MTD study · Pet Poison Helpline · ASPCA Animal Poison Control

21vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Calcium Pantothenate, Vitamin A Supplement, Riboflavin Supplement, Biotin, Pyridoxine Hydrochloride, Vitamin B12 Supplement, Folic Acid, Vitamin D3 Supplement)12 components▾

● Standard ingredientA generic term for a vitamin premix. Where the label lists the specific vitamins in brackets, each is shown and classified below; otherwise the individual vitamins are not disclosed.Sources: AAFCO ingredient definitions

The label breaks this entry into components, each classified on its own:

22Choline Chloride▾

● Standard ingredientCholine chloride: a standard added nutrient for normal cell and nerve function.

23minerals (Manganese Sulfate, Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Calcium Iodate, Sodium Selenite)6 components▾

● Standard ingredientA generic term for a mineral premix. Where the label lists the specific mineral compounds in brackets, each is shown and classified below; otherwise the individual minerals are not disclosed. European-style labels declare added trace minerals as numbered additives with doses (e.g. "E4 (copper): 10 mg").Sources: AAFCO ingredient definitions

The label breaks this entry into components, each classified on its own:

24TaurineTaurine (supplemental)▾

● Beneficial (well-established)Taurine supplementation is increasingly common in dog food, particularly for breeds associated with DCM susceptibility.Sources: Pion et al. 1987 · NRC 2006 · Freeman et al. 2018Position on the ingredient list suggests a small inclusion level.

25Mixed Tocopherols for freshnessMixed tocopherols (natural preservative)▾

● Beneficial (emerging)This product uses mixed tocopherols (natural vitamin E) as a preservative, which is an alternative to synthetic preservation systems.Sources: NRC 2006Position on the ingredient list suggests a small inclusion level.

26Natural FlavorsNatural flavours▾

● Contextual noteA broad AAFCO-defined category that may contain multiple unspecified compounds. Relevant for allergy-prone pets since potential allergens may not be individually listed.Sources: AAFCO 2024

27L-Carnitine▾

● Beneficial (emerging)L-carnitine is associated with fat metabolism support in some studies, particularly in weight management contexts.Sources: Gross et al. 2000Position on the ingredient list suggests a small inclusion level.

28Beta-Carotene▾

● Beneficial (emerging)A provitamin A carotenoid and antioxidant. Some studies have explored its role in immune function and skin health in dogs. Note: cats cannot convert beta-carotene to vitamin A.Sources: Chew et al. 2000 (Journal of Nutrition)Position on the ingredient list suggests a small inclusion level.