Products / Dog Food / Hill's Science Diet

Dog Food · Dry · Adult · Meal

Hill's Science Diet

Hill's Science Diet Perfect Weight & Joint Support Adult Dry Dog Food

View on Hill's Science Diet: official page

31 ingredients28% protein (dry matter)3,204 kcal/kg★ 4.7 · 77 reviews Where to buy ↓

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Ingredients

31 ingredients

12 beneficial · 1 under research review · 11 contextual · 23 standard

47 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

31 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

2Brown 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

3Chicken Meal

Show all 31 ingredients ▾

9Dried Tomato PomaceTomatoes▾

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

10Soybean MealSoy / soybean meal▾

● Contextual noteA plant-based protein source. Contains phytoestrogens (isoflavones). A common allergen in some pets.Sources: NRC 2006 · AAFCO 2024

11Soybean Oil

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.

This product lists 2 separate soy derivatives (soybean meal, soybean oil). 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 & Joint Support Chicken & Brown Rice Recipe Dog Food provides complete and balanced nutrition for maintenance of adult dogs." (brand statement)

Protein28%AAFCO min 18% DM

Fat14%AAFCO min 5.5% DM

Fibre15%no AAFCO reference

3,204 kcal/kg≈ 1,341 kJ / 100g energy densityBrand states 3,204 kcal/kg

Also declared on the label

Phosphorus0.68% dry matterbrand statedSodium0.36% dry matterbrand statedPotassium0.92% dry matterbrand statedMagnesium0.126% dry matterbrand statedOmega-3 (total)1.4% 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.

Customer reviews

4.7

77 reviews · aggregated from retailer listings across multiple sources

Where to buy

confirm prices and explore sizes on the retailer's site

PetbarnCheck current price

checked 20d ago · 2 sizes: 1.59kg, 11.34kgVisit

Named 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

4Corn 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

5Powdered CelluloseCellulose / powdered cellulose▾

● Under research reviewA plant-derived insoluble fibre. Provides bulk but limited nutritional value. Acceptable in small amounts; when present as a primary fibre source (top 10 ingredients), it may indicate a high proportion of nutritionally inert filler.Sources: NRC 2006 Nutrient Requirements · Nutritional composition data

6Pea 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

7Brewers 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

8Whole Grain CornCorn / corn gluten meal▾

● Contextual noteA plant-derived oil providing omega-6 fatty acids. Derived from soybeans, which are a common allergen in some pets. Relevant for allergy-prone pets.Sources: NRC 2006 · AAFCO ingredient definitions

12Hydrolyzed Chicken FlavorNamed single-species whole meat▾

13Coconut 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.

14Fish OilEPA + DHA (marine-source omega-3)▾

● Beneficial (well-established)Marine-source omega-3 fatty acids associated with anti-inflammatory, skin/coat health, joint support, cognitive function, and cardiac and renal support in multiple peer-reviewed studies.Sources: Bauer 2011 JAVMA · NRC 2006 · Multiple RCTs in dogs for skin/joint conditionsPosition on the ingredient list suggests a moderate to small inclusion level.

15FlaxseedFlaxseed / 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 2011Position on the ingredient list suggests a moderate to small inclusion level.

16Lactic Acid▾

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

17Pork 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 dataPosition on the ingredient list suggests a moderate to small inclusion level.

18L-Lysine▾

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

19Potassium ChloridePotassium salts▾

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

20Carrots▾

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

21Iodized SaltSalt▾

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

22DL-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

23Choline Chloride▾

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

24vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Riboflavin Supplement, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, 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:

25TaurineTaurine (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.

26minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, 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:

27Calcium CarbonateCalcium salts▾

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

28Mixed 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.

29Natural 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

30L-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.

31Beta-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.