tuna
Tuna is a named protein cats love — best as an ingredient, not a diet. What the engine rewards, and where the caution sits.
Also appears on labels as: fresh tuna · deboned tuna · flaked tuna · skipjack tuna · yellowfin tuna
What it is
Tuna is a large predatory fish contributing named animal protein. Labels say tuna, fresh tuna, or flaked tuna, most often in wet cat formulas. As a big predator it accumulates more mercury than small forage fish like sardines or herring.
Why it's in pet food
Palatability, mostly — tuna is famously irresistible to cats, and it carries genuine protein and some omega-3s. The honest caveat is dose: tuna as one ingredient of a balanced formula is a different thing from tuna as the diet.
How Bowlmark scores it
Scores are deterministic math over the printed label — the rules below apply to every product identically, and nothing estimates or fills in a blank.
Tuna is on the engine's named-protein list: 15 points on the ingredient-quality pillar when fresh tuna leads the label (a named tuna meal earns 12 there instead). The cat-specific caution below is informational context on this page — it does not change the score.
For cats
The caution is about tuna as a staple, not tuna in a recipe: unbalanced all-tuna feeding has been associated with vitamin E deficiency (steatitis) in cats, and large predatory fish carry more mercury than small forage fish. In a complete, balanced formula tuna is fine; if tuna is most of what your cat eats, that is a vet conversation.
Common questions
Answers come from this entry and the scoring rules above — reviewed before publish, like everything else on this page. For anything about your own pet, your vet knows best.
Can cats eat tuna every day?
Tuna as one ingredient of a complete, balanced formula is fine. Tuna as the diet is the problem: unbalanced all-tuna feeding has been associated with vitamin E deficiency (steatitis) in cats, and tuna carries more mercury than small forage fish. If tuna is most of what your cat eats, that is a vet conversation.
Does tuna contain mercury?
Tuna is a large predatory fish, and it accumulates more mercury than small forage fish like sardines or herring. In a balanced formula the dose is a different thing from an all-tuna diet — the caution is about tuna as a staple, not tuna in a recipe.
How does Bowlmark score tuna in cat food?
Tuna is on the engine's named-protein list: 15 points on the ingredient-quality pillar when fresh tuna leads the label, or 12 for a named tuna meal. The cat-specific staple caution is informational context on this page — it does not change the score.
Foods that list tuna
Ranked by score where scores exist. Placement here is never sold.
- Fancy Feast Gourmet Naturals Natural Trout & Tuna Recipe85
- Friskies Gravy Sensations With Ocean Whitefish & Tuna In Gravy80
- Purina Pro Plan Development Salmon & Tuna Entrée Classic Grain Free80
- Purina Pro Plan Sensitive Skin & Stomach Tuna & Oat Meal79
- Purina ONE Natural, High Protein Cat Food, Tuna Recipe in Sauce78
- Friskies Paté Ocean Whitefish & Tuna Dinner76
- Purina Pro Plan All Life Stages Tuna Classic Entrée74
- Fancy Feast Delights With Cheddar Grilled Tuna & Cheddar Cheese Feast in Wet Cat Food Gravy73
Compare foods that list tuna
Same species, same form, both scored — closest scores first, so the comparison is a real one.
- Friskies Gravy Sensations With Ocean Whitefish & Tuna In Gravy vs Purina Pro Plan Development Salmon & Tuna Entrée Classic Grain Free
- Fancy Feast Delights With Cheddar Grilled Tuna & Cheddar Cheese Feast in Wet Cat Food Gravy vs Purina Pro Plan All Life Stages Tuna Classic Entrée
- Friskies Gravy Sensations With Ocean Whitefish & Tuna In Gravy vs Purina Pro Plan Sensitive Skin & Stomach Tuna & Oat Meal
- Purina ONE Natural, High Protein Cat Food, Tuna Recipe in Sauce vs Purina Pro Plan Sensitive Skin & Stomach Tuna & Oat Meal
Sources
Related ingredients
Further reading
Cite this page
Bowlmark. "Tuna in pet food — what it is and how it scores." https://www.bowlmark.com/ingredient/tuna
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- Last verified August 21, 2026
No stored score to stamp yet — the engine and config above are the ones a scan runs today.