Hill's Science Diet Adult 1-5 Large Breed Dry Dog Food 45 lb
- 45 pound bag of dry food
- Adult 1 to 5 years, large breeds
- Chicken and barley with wheat, corn and vegetables
- High protein with joint support
- No artificial flavors
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A large-breed adult dry food with chicken and barley, aimed at joints, lean muscle and skin and coat. It contains wheat and corn, and the bag is very large.
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ASIN: B09RPJLZ9CCategory: Dry Pet Foods
Overview
A large-breed adult dog is the buyer this Hill's Science Diet bag has in mind, with chicken, chicken meal and barley as the base. Fruit and vegetables such as apples, carrots and broccoli are listed as well.
Joint health, a lean-muscle claim and skin and coat support are the three stated benefits. The forty-five pound bag is a bulk size for big dogs. Calories per cup are not given.
Who it's for
People feeding large dogs between one and five years old. The bulk bag suits the quantities such dogs eat. Puppies, seniors and dogs with grain sensitivity need a different recipe.
Pros and cons
- Joint health support
- Chicken and barley base
- Contains wheat and corn
- Calories per cup not listed
- Heavy bag to lift
- Not a puppy or senior formula
Performance notes
A large-breed formula is tuned to the energy and joint needs of heavy dogs, and feeding amounts follow the bag chart by weight. Protein supports muscle, and the antioxidants aim at immune function. Starting the food slowly reduces stomach upset.
Specifications
| Brand | Hill's Science Diet |
|---|---|
| Dimensions & fit | |
| Dog Breed Size | Large |
| Weight | 45 pounds |
| Capacity & performance | |
| Age Range Description | Adult 1-5 |
| Included components | |
| Unit Count | 720 ounces |
| Other details | |
| Flavor | Chicken and barley |
| Special Ingredients | Chicken, chicken fat, chicken meal, cracked pearled barley, whole grain wheat, whole grain corn, flaxseed, apples, broccoli, carrots, cranberries, green peas |
| Animal Food Nutrient Content Claim | High protein |
| Item Form | Dry food |
| Breed Recommendation | All breed sizes |
| Animal Food Ingredient Claim | No artificial flavors |
| Container Type | Bag |
| Product Benefits | Supports joint health, promotes skin and coat health, builds lean muscles |
| Occasion | Everyday Nutrition |
| Target Species | Dog |
Closest rivals on specs
Diamond Puppy 31/20 High Protein Dry Dog Food 40 lb- Item Weight 45 vs 40 pounds (+13%)
Diamond Naturals Large Breed Puppy Food 40 lb- Item Weight 45 vs 40 pounds (+13%)
Frequently asked questions
How do I switch my dog to Hill's Science Diet Adult 1-5 Large Breed?
The listing gives no transition steps. Mix the new food in gradually with the old, following the bag directions.
Does it contain wheat or corn?
Yes. Whole grain wheat and whole grain corn are in the ingredient list.
Is it for puppies?
No. The age range is adult 1 to 5 years.
What is in the bag?
45 pounds of chicken and barley dry food.