Blue Buffalo vs Hill's
Blue Buffalo against Hill's, measured across 104 and 60 kibble recipes: 30.9% vs 22.6% protein on a dry matter basis, 36% vs 47% starch, and 0 vs 0 FDA recalls in the last five years.
How They Differ
- Blue Buffalo runs higher in protein: 30.9% against 22.6% on a dry matter basis, averaged across the kibble we review from each.
- Blue Buffalo is lower in starch, about 36% of the food as fed against 47%.
- Blue Buffalo is more calorie dense, 387 kcal per cup on average against 352, so its portions run smaller for the same dog.
Side by Side
| Measure | Blue Buffalo | Hill's | Average kibble |
|---|---|---|---|
| Kibble recipes compared | 104 | 60 | 1,540 in total |
| Protein, dry matter | 30.9%20.0% to 51.1% | 22.6%17.2% to 32.0% | 30.4% |
| Fat, dry matter | 15.5%10.0% to 22.2% | 12.4%6.1% to 18.6% | 16.0% |
| Starch, as fedEstimated, not measured. It is what is left of the guaranteed analysis once protein, fat, fiber and moisture are taken out, with ash assumed at 6%. That leftover is mostly starch but also carries sugars and the fiber a crude-fiber test misses, so read it as a close estimate rather than an exact figure. Measured as fed, the same basis as the bag. | 36%14% to 49% | 47%34% to 54% | 37% |
| Calories per cup | 387323 to 479 | 352243 to 445 | 398 |
| Meat, fish or egg listed first | 100% | 100% | |
| Grain-free recipes | 1% | 2% | |
| Most used proteins | Chicken 69%, Fish 63%, Egg 46% | Chicken 92%, Egg 30%, Lamb 8% | |
| Recipes with corn, wheat, soy | Corn 0%, Wheat 0%, Soy 0% | Corn 62%, Wheat 50%, Soy 70% | |
| By-products | 0% | 2% | |
| FDA recalls, last 5 years | None | None1 older in the archive | |
| Made by | General Mills | Colgate-Palmolive Company |
Brand figures are averages over every kibble recipe we review from that brand, with the lowest and highest recipe underneath. Freeze-dried, frozen, wet food and toppers are left out so the numbers compare like with like, and so are prescription diets, which are fed for a medical condition on a vet's advice. Protein and fat are on a dry matter basis, starch and calories as fed.
The Closest Matching Recipes
Brand averages hide the recipe you would actually buy. These are the pairs that come closest on protein, fat and starch, preferring recipes built on the same main protein, which is where a like-for-like choice gets made.
Blue Life Protection Formula Adult Small Breed Lamb and Brown Rice Recipe Dry Dog Food
Protein 27%
Fat 18%
Starch 40%
Hill’s Science Diet Adult Sensitive Stomach & Skin Small Bites Chicken Recipe Dry Dog Food
Protein 28%
Fat 19%
Starch 41%
Compare these two in full
Which Fits Your Dog
- For an active or working dog, or one that needs to hold muscle, Blue Buffalo puts more protein in each bowl.
- For a dog that gains weight easily, Hill's is less calorie dense, so a normal-looking portion carries fewer calories.
- If you are cutting back on starch, Blue Buffalo starts lower.
- The brands overlap more than the averages suggest: Blue Buffalo runs from 20% to 51% protein and Hill's from 17% to 32%, so the right recipe matters more than the name on the bag.
Recall History
FDA recall notices from the last five years that name the brand or its maker. Older notices sit in each brand's archive below: still on the record, but not counted, since a recall that old says more about how a company used to run than how it runs now.
Blue Buffalo
No FDA recalls for Blue Buffalo in the last five years.
Hill's
No FDA recalls for Hill's in the last five years.
Archive: 1 older recall
Hill's Science Diet. Canned Dog Food
About the Brands
Blue Buffalo
Blue is the pet food brand of the Blue Buffalo Company, which has been owned by General Mills since 2018. Its dog food lines include Life Protection Formula, Wilderness, Basics, Freedom and the fresh Love Made Fresh range. The company says its recipes start with real meat and exclude corn, wheat, soy and poultry by-product meals.
Based in Wilton, CT, since 2003. Every Blue Buffalo food we review
Hill's
Hill's is made by Hill's Pet Nutrition, a subsidiary of Colgate-Palmolive, and is best known for its Science Diet wellness foods and its Prescription Diet therapeutic foods sold through veterinarians. It also sells the Bioactive Recipe and Healthy Advantage lines.
Based in Overland Park, Kansas, since 1948. Every Hill's food we review
More Brand Comparisons
How we compare: every figure comes from the guaranteed analysis and ingredient list of recipes we review, not from the brands' own claims. Starch is our estimate, since no manufacturer prints it. Figures refreshed September 29, 2026.