17 cans compared

Instinct vs Purina ONE

The typical Instinct can gets 3.5% of its calories from carbohydrate, against 5.6% for Purina ONE. Instinct has 5 of 9 recipes under the 10% low-carb line; Purina ONE has 5 of 8. Below, every number is worked out the same way from each can’s label.

Instinct

Purina ONE

Instinct vs Purina ONE 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.

	Instinct	Purina ONE
Cans we compare	9	8
Typical carbs, % of calories	3.5%	5.6%
Carb range	0–25.9%	3.9–13.6%
Recipes under 10% carbs	5 of 9	5 of 8
Typical protein, % of calories	40%	45%
Typical fat, % of calories	60%	50%
Calories per ounce	38	31
Calories per can	67–122	70–105
Recipes with published phosphorus	0 of 9	0 of 8
Typical phosphorus, mg per 100 kcal	—	—
Confirmed for kittens	9 of 9	7 of 8
Chicken-free recipes	6 of 9	0 of 8
Fish-free recipes	2 of 9	0 of 8
Textures	Pâté, Flaked	Pâté, Flaked

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

Instinct3 oz

Limited Ingredient Paté Real Turkey Entrée

Pâté · 113 kcal per can

Carbs: 0%
Protein: 40%
Phosphorus: not listed

Protein 40%Fat 60%Carbs 0%

Low carbNo chickenNo fish

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

Same texture, head to head

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

Texture	Instinct	Purina ONE
Pâté	Limited Ingredient Paté Real Turkey Entrée0% carbs · 40% protein · 113 kcal	Chicken & Salmon Recipe3.9% carbs · 39% protein · 105 kcal
Flaked	Flaked Real Chicken Entrée in Gravy12.4% carbs · 40% protein · 75 kcal	Chicken Recipe in Gravy13.6% carbs · 60% protein · 73 kcal

Which to choose, by what your cat needs

For a diabetic or overweight cat

Instinct is the lower-carb line overall. Its lowest-carb recipe is Limited Ingredient Paté Real Turkey Entrée at 0% of calories; Purina ONE’s is Chicken & Salmon Recipe at 3.9%. Both brands have recipes under the 10% line (5 of 9 against 5 of 8), so the right recipe matters more than the brand.

For kidney concerns

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

Instinct has 9 of 9 recipes whose label we could confirm covers growth or all life stages; Purina ONE has 7 of 8. A missing statement doesn’t mean a can is unsuitable, only that we couldn’t verify it.

For allergies and picky eaters

Chicken-free: Instinct 6 of 9, Purina ONE 0 of 8. Fish-free: Instinct 2 of 9, Purina ONE 0 of 8. Textures: Instinct makes pâté, flaked; Purina ONE makes pâté, flaked.

Questions about Instinct vs Purina ONE

Is Instinct or Purina ONE lower in carbs?

The typical Instinct can gets 3.5% of its calories from carbohydrate, against 5.6% for Purina ONE. Instinct has 5 of 9 recipes under the 10% low-carb line; Purina ONE has 5 of 8.

Which has more protein, Instinct or Purina ONE?

Instinct. Its typical can gets 40% of calories from protein, against 45% for Purina ONE. Instinct has 0 of 9 recipes over 50% protein calories; Purina ONE has 3 of 8.

Which is more filling per ounce?

Purina ONE. Its cans average 31 calories per ounce against 38 for Instinct, so a cat needs fewer ounces of it to get the same calories.

Do Instinct and Purina ONE publish phosphorus?

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

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

Carbs are what matter most, and Instinct has the lower-carb line with 5 of 9 recipes under 10%. The best single choice is a specific recipe, not a brand: Limited Ingredient Paté Real Turkey Entrée (0%) from Instinct or Chicken & Salmon Recipe (3.9%) from Purina ONE. Change a diabetic cat’s food only with your vet.