Purina ONE3 oz
18 cans compared
Purina ONE vs Royal Canin
The typical Purina ONE can gets 5.6% of its calories from carbohydrate, against 14.6% for Royal Canin. Purina ONE has 5 of 8 recipes under the 10% low-carb line; Royal Canin has 2 of 10. Below, every number is worked out the same way from each can’s label.
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Purina ONE vs Royal Canin at a glance
Typical values are the middle recipe of each brand. Shares are of calories, so textures compare fairly. Marked cells show the better value where the gap is meaningful.
| Purina ONE | Royal Canin | |
|---|---|---|
| Cans we compare | 8 | 10 |
| Typical carbs, % of calories | 5.6% | 14.6% |
| Carb range | 3.9–13.6% | 8.8–24.1% |
| Recipes under 10% carbs | 5 of 8 | 2 of 10 |
| Typical protein, % of calories | 45% | 53% |
| Typical fat, % of calories | 50% | 29% |
| Calories per ounce | 31 | 22 |
| Calories per can | 70–105 | 55–78 |
| Recipes with published phosphorus | 0 of 8 | 0 of 10 |
| Typical phosphorus, mg per 100 kcal | — | — |
| Confirmed for kittens | 7 of 8 | 2 of 10 |
| Chicken-free recipes | 0 of 8 | 0 of 10 |
| Fish-free recipes | 0 of 8 | 2 of 10 |
| Textures | Pâté, Flaked | Pâté, Chunks in gravy |
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Lowest-carb can from each brand
The recipe with the smallest share of calories from carbohydrate on each side, leaving out toppers meant for supplemental feeding.
Put these two side by sideRoyal Canin3 oz
Kitten Loaf in Sauce
- Carbs
- 8.8%
- Protein
- 53%
- Phosphorus
- not listed
Low carbHigh protein
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Same texture, head to head
For each texture both brands make, the lowest-carb recipe from each.
| Texture | Purina ONE | Royal Canin |
|---|---|---|
| Pâté | Chicken & Salmon Recipe3.9% carbs · 39% protein · 105 kcal | Kitten Loaf in Sauce8.8% carbs · 53% protein · 78 kcal |
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Which to choose, by what your cat needs
For a diabetic or overweight cat
Purina ONE is the lower-carb line overall. Its lowest-carb recipe is Chicken & Salmon Recipe at 3.9% of calories; Royal Canin’s is Kitten Loaf in Sauce at 8.8%. Both brands have recipes under the 10% line (5 of 8 against 2 of 10), so the right recipe matters more than the brand.
For kidney concerns
Purina ONE doesn’t publish phosphorus on the pages we checked. Royal Canin doesn’t publish phosphorus on the pages we checked. Without published values neither brand can be checked for phosphorus from the label alone; ask the maker for a typical analysis.
For kittens
Purina ONE has 7 of 8 recipes whose label we could confirm covers growth or all life stages; Royal Canin has 2 of 10. A missing statement doesn’t mean a can is unsuitable, only that we couldn’t verify it.
For allergies and picky eaters
Chicken-free: Purina ONE 0 of 8, Royal Canin 0 of 10. Fish-free: Purina ONE 0 of 8, Royal Canin 2 of 10. Textures: Purina ONE makes pâté, flaked; Royal Canin makes pâté, chunks in gravy.
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Questions about Purina ONE vs Royal Canin
Is Purina ONE or Royal Canin lower in carbs?
The typical Purina ONE can gets 5.6% of its calories from carbohydrate, against 14.6% for Royal Canin. Purina ONE has 5 of 8 recipes under the 10% low-carb line; Royal Canin has 2 of 10.
Which has more protein, Purina ONE or Royal Canin?
Purina ONE. Its typical can gets 45% of calories from protein, against 53% for Royal Canin. Purina ONE has 3 of 8 recipes over 50% protein calories; Royal Canin has 8 of 10.
Which is more filling per ounce?
Royal Canin. Its cans average 22 calories per ounce against 31 for Purina ONE, so a cat needs fewer ounces of it to get the same calories.
Do Purina ONE and Royal Canin publish phosphorus?
Purina ONE doesn’t publish phosphorus on the pages we checked. Royal Canin doesn’t publish phosphorus on the pages we checked.
Which is better for a diabetic cat, Purina ONE or Royal Canin?
Carbs are what matter most, and Purina ONE has the lower-carb line with 5 of 8 recipes under 10%. The best single choice is a specific recipe, not a brand: Chicken & Salmon Recipe (3.9%) from Purina ONE or Kitten Loaf in Sauce (8.8%) from Royal Canin. Change a diabetic cat’s food only with your vet.
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