13 cans compared

Purina ONE vs Ziwi Peak

Both brands land close on carbs: 5.6% of calories for the typical Purina ONE can and 6.3% for Ziwi Peak. Purina ONE has 5 of 8 recipes under the 10% low-carb line; Ziwi Peak has 3 of 5. Below, every number is worked out the same way from each can’s label.

Purina ONE

Ziwi Peak

Purina ONE vs Ziwi Peak 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	Ziwi Peak
Cans we compare	8	5
Typical carbs, % of calories	5.6%	6.3%
Carb range	3.9–13.6%	5.9–13.2%
Recipes under 10% carbs	5 of 8	3 of 5
Typical protein, % of calories	45%	38%
Typical fat, % of calories	50%	56%
Calories per ounce	31	32
Calories per can	70–105	87–104
Recipes with published phosphorus	0 of 8	0 of 5
Typical phosphorus, mg per 100 kcal	—	—
Confirmed for kittens	7 of 8	5 of 5
Chicken-free recipes	0 of 8	4 of 5
Fish-free recipes	0 of 8	4 of 5
Textures	Pâté, Flaked	Pâté

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

Ziwi Peak3 oz

Lamb Recipe

Pâté · 102 kcal per can

Carbs: 5.9%
Protein: 37%
Phosphorus: not listed

Protein 37%Fat 57%Carbs 6%

Low carbNo chickenNo fish

Same texture, head to head

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

Texture	Purina ONE	Ziwi Peak
Pâté	Chicken & Salmon Recipe3.9% carbs · 39% protein · 105 kcal	Lamb Recipe5.9% carbs · 37% protein · 102 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%), Ziwi Peak’s is Lamb Recipe (5.9%).

For kidney concerns

Purina ONE doesn’t publish phosphorus on the pages we checked. Ziwi Peak 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; Ziwi Peak has 5 of 5. 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, Ziwi Peak 4 of 5. Fish-free: Purina ONE 0 of 8, Ziwi Peak 4 of 5. Textures: Purina ONE makes pâté, flaked; Ziwi Peak makes pâté.

Questions about Purina ONE vs Ziwi Peak

Is Purina ONE or Ziwi Peak lower in carbs?

Both brands land close on carbs: 5.6% of calories for the typical Purina ONE can and 6.3% for Ziwi Peak. Purina ONE has 5 of 8 recipes under the 10% low-carb line; Ziwi Peak has 3 of 5.

Which has more protein, Purina ONE or Ziwi Peak?

Ziwi Peak. Its typical can gets 38% of calories from protein, against 45% for Purina ONE. Purina ONE has 3 of 8 recipes over 50% protein calories; Ziwi Peak has 0 of 5.

Which is more filling per ounce?

About the same: 31 calories per ounce for Purina ONE and 32 for Ziwi Peak.

Do Purina ONE and Ziwi Peak publish phosphorus?

Purina ONE doesn’t publish phosphorus on the pages we checked. Ziwi Peak doesn’t publish phosphorus on the pages we checked.

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

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 Lamb Recipe (5.9%) from Ziwi Peak. Change a diabetic cat’s food only with your vet.