Hill's Science Diet Adult 1-5 Light Large Breed Dry Dog Food
- Dry Food
- Bag
- 30 pounds
- 1
A low-calorie, large breed dry dog food from an established veterinary brand, pairing weight management with joint support.
As an Amazon Associate, ProductDome may earn a commission from qualifying purchases made through links on this page.
How it ranks among the 155 dry food we track
4.7★ across 2,800 Amazon ratings, Bayesian-smoothed toward the category average.
2,800 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
3,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 155 dry food we track - how the scorecard works · full dry food data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Hill's Science Diet Light Large Breed is a weight management dry dog food for adult dogs aged 1 to 5, built around chicken meal and barley in a low-calorie formula. It comes in a 30 lb bag sized for large and giant breeds.
The formula targets large breed dogs prone to weight gain, combining calorie control with joint and mobility support, a pairing that matters more for big dogs where excess weight adds stress on joints. It's backed by Hill's satisfaction guarantee and ranks number 192 among dry dog foods.
- Chicken meal and barley formula
- Low calorie, weight management
- Large breed hip and joint support
- 30 lb bag
Who it's for
Owners of large or giant breed adult dogs who need to manage weight while still supporting joint health. Not intended for puppies, small breeds, or dogs that don't need calorie restriction.
Strengths and trade-offs
Drawn from this product's published specifications.
- Formulated for weight management in large breeds
- Backed by a money-back satisfaction guarantee
- Includes hip and joint support
- Large 30 lb bag
- Not suited to small or medium breed dogs
- Restricted to the 1 to 5 year adult age range
Performance notes
The low-calorie nutrient content claim is paired with hip and joint support, muscle care, and skin and coat health, covering common concerns for large breed dogs carrying extra weight. Barley serves as the named carbohydrate alongside chicken meal as the protein source.
Specifications
| Brand | Hill's |
|---|---|
| Model | 603940 |
| Dimensions & fit | |
| Item Weight | 30 pounds |
| Dog Breed Size | Large |
| Capacity & performance | |
| Age Range Description | Adult 1-5 |
| Included components | |
| Unit Count | 30 pounds |
| Included Components | Dog Food |
| Other details | |
| Container Type | Bag |
| Number Of Items | 1 |
| Best Sellers Rank | #2,542 in Pet Supplies (See Top 100 in Pet Supplies) #192 in Dry Dog Food |
| Product Benefits | Supports weight management, heart health, and mobility; promotes skin and coat health; satisfies hunger; made with trusted ingredients. |
| Animal Food Nutrient Content Claim | Low Calorie |
| Breed Recommendation | Large Breeds |
| Occasion | Everyday Nutrition |
| Manufacturer Part Number | 603940 |
| Flavor | Chicken & Barley |
| Model Number | 603940 |
| Item Form | Pellet |
| Recommended Uses For Product | Weight Management in Large and Giant Breed Adult Dogs, Hip and Joint Support, Muscle Care, Skin and Coat Health, Digestive Health, Large Breed Formula |
| Additional Features | Weight Management |
| Manufacturer | Hill's Pet Nutrition |
| Allergen Information | Chicken Meat |
| Target Species | Dog |
| Customer Reviews | {'ratings_count': '2,858', 'stars': '4.7'} |
| Upc | 052742072173 052742022215 |
| Item Type Name | Light, Dog Dry Food, Large Breed |
| Special Ingredients | Barley |
| Asin | B07LGW2JFW |
| Specific Uses For Product | Weight Management, Hip and Joint Support, Muscle Care, Skin and Coat Health, Digestive Health, Large Breed Formula |
Other Hill's dry food
How it compares
This product against the closest alternatives we track in dry food.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Hill's Science Diet Adult 1-5 Light Large Breed Dry Dog FoodThis product | 4.7 / 5 | 2,800 | 4.5 / 5 |
| Royal Canin Size Health Nutrition Small Adult Dry Dog FoodROYAL | 4.8 / 5 | 9,900 | 4.7 / 5 |
| IAMS Proactive Health Adult Minichunks Premium Dry Dog FoodIAMS | 4.7 / 5 | 31,844 | 4.6 / 5 |
| Blue Buffalo Life Protection Formula Chicken & Brown Rice Adult Dry Dog FoodBlue | 4.7 / 5 | 29,281 | 4.6 / 5 |
| Cesar Small Breed Dry Dog Food for Small DogsCesar | 4.7 / 5 | 19,500 | 4.6 / 5 |
Similar dry food from other brands
Questions about the Hill's 603940
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What age range is this formula for?
It's formulated for adult dogs between 1 and 5 years old.
Is this formula meant for small dogs?
No, it's specifically a large breed formula.
Does Hill's offer a guarantee on this food?
Yes, it's listed with a satisfaction or money-back guarantee.