18 cans compared

Purina ONE vs Wellness

Both brands land close on carbs: 5.6% of calories for the typical Purina ONE can and 6.2% for Wellness. Purina ONE has 5 of 8 recipes under the 10% low-carb line; Wellness has 7 of 10. Below, every number is worked out the same way from each can’s label.

Purina ONE

Wellness

Purina ONE vs Wellness 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	Wellness
Cans we compare	8	10
Typical carbs, % of calories	5.6%	6.2%
Carb range	3.9–13.6%	0–25.9%
Recipes under 10% carbs	5 of 8	7 of 10
Typical protein, % of calories	45%	40%
Typical fat, % of calories	50%	51%
Calories per ounce	31	27
Calories per can	70–105	66–481
Recipes with published phosphorus	0 of 8	8 of 10
Typical phosphorus, mg per 100 kcal	—	168 mg
Confirmed for kittens	7 of 8	3 of 10
Chicken-free recipes	0 of 8	2 of 10
Fish-free recipes	0 of 8	1 of 10
Textures	Pâté, Flaked	Pâté, Flaked, Shreds in broth, Chunks in gravy, Minced

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 side

Purina ONE3 oz

Chicken & Salmon Recipe

Pâté · 105 kcal per can

Carbs: 3.9%
Protein: 39%
Phosphorus: not listed

Protein 39%Fat 57%Carbs 4%

Low carb

Wellness3 oz

Chicken, Turkey & Chicken Liver Recipe

Pâté · 116 kcal per can

Carbs: 0%
Protein: 40%
Phosphorus: 147mg

Protein 40%Fat 60%Carbs 0%

Low carbLower phosphorus

Same texture, head to head

For each texture both brands make, the lowest-carb recipe from each.

Texture	Purina ONE	Wellness
Pâté	Chicken & Salmon Recipe3.9% carbs · 39% protein · 105 kcal	Chicken, Turkey & Chicken Liver Recipe0% carbs · 40% protein · 116 kcal
Flaked	Chicken Recipe in Gravy13.6% carbs · 60% protein · 73 kcal	Flaked Skipjack Tuna & Wild Salmon Entrée in Broth0% carbs · 54% protein · 70 kcal

Which to choose, by what your cat needs

For a diabetic or overweight cat

Neither brand has a clear edge on carbs. Pick by recipe: Purina ONE’s lowest is Chicken & Salmon Recipe (3.9%), Wellness’ is Chicken, Turkey & Chicken Liver Recipe (0%).

For kidney concerns

Purina ONE doesn’t publish phosphorus on the pages we checked. Wellness publishes phosphorus for 8 of 10 recipes (typical 168 mg per 100 kcal). Only recipes with a published value can be checked, so start from those and confirm targets with your vet.

For kittens

Purina ONE has 7 of 8 recipes whose label we could confirm covers growth or all life stages; Wellness has 3 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, Wellness 2 of 10. Fish-free: Purina ONE 0 of 8, Wellness 1 of 10. Textures: Purina ONE makes pâté, flaked; Wellness makes pâté, flaked, shreds in broth, chunks in gravy, minced.

Questions about Purina ONE vs Wellness

Is Purina ONE or Wellness lower in carbs?

Both brands land close on carbs: 5.6% of calories for the typical Purina ONE can and 6.2% for Wellness. Purina ONE has 5 of 8 recipes under the 10% low-carb line; Wellness has 7 of 10.

Which has more protein, Purina ONE or Wellness?

Wellness. Its typical can gets 40% of calories from protein, against 45% for Purina ONE. Purina ONE has 3 of 8 recipes over 50% protein calories; Wellness has 2 of 10.

Which is more filling per ounce?

Wellness. Its cans average 27 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 Wellness publish phosphorus?

Purina ONE doesn’t publish phosphorus on the pages we checked. Wellness publishes phosphorus for 8 of 10 recipes (typical 168 mg per 100 kcal).

Which is better for a diabetic cat, Purina ONE or Wellness?

Carbs are what matter most, and the two brands are close. The best single choice is a specific recipe, not a brand: Chicken & Salmon Recipe (3.9%) from Purina ONE or Chicken, Turkey & Chicken Liver Recipe (0%) from Wellness. Change a diabetic cat’s food only with your vet.