Hill's · Science Diet Adult · Tender Tuna Dinner

Name: Hill's Science Diet Adult Tender Tuna Dinner
Brand: Hill's

Wet food · Adult Maintenance

Furry PI's verdict

Hill's Science Diet Adult doesn't hold up well under the magnifying glass. It contains menadione sodium bisulfite complex. To be fair, tuna leads the ingredient list — the right start for an obligate carnivore. On balance, most cats are better served by stronger options — the app can suggest better-graded foods of the same type.

What's concerning

Contains menadione sodium bisulfite complex — an ingredient our database flags as genuinely problematic for cats.
Artificial colours or preservatives on the label — caramel color.
A modest share of calories comes from protein.

What works

Tuna leads the ingredient list — the right start for an obligate carnivore.
As a wet food, it delivers the moisture cats rarely drink on their own.
Carbohydrate load stays close to what a cat would eat in nature.

The grade is only the cover of the case file. The free app shows the full 100-point breakdown, every flagged ingredient, and better-graded alternatives for your cat.

Open the full investigation — free

Nutrition from the label (as fed)

Protein	10.6%
Fat	4%
Fiber	0.5%
Moisture*	75%
Ash	1.5%
Carbs	8.5%

Label: typical analysis (measured). * not printed on the label — carbs are calculated, ash/moisture estimated from typical values. How these numbers translate into calories from protein vs carbs — and how this food scores on each pillar — is shown in the app.

Quick answers

Is Hill's Science Diet Adult grain-free?: No — the label lists wheat flour, modified rice starch and oat fiber.
What are the first ingredients in Hill's Science Diet Adult?: The label opens with tuna, chicken and pork liver. Ingredients are listed by weight, so the first few carry the most.
Does it contain artificial colours or preservatives?: Yes — the label lists caramel color.

More from Hill's

Grades come from a fixed, formula-based method — the same for every food, never paid for. About Furry PI

Furry PI analyses food labels and isn't a substitute for veterinary advice.