Max a Mia Slovensky

Can they eat it?

Can dogs and cats eat Tuna (for cats)?

DogOnly with care
CatOnly with care

Plain tuna is fine as an occasional treat, but tuna for humans is not a complete diet for cats and can be high in salt and mercury.

Why

Not toxic in small amounts; risks are unbalanced diet, salt (brine) and mercury with long-term feeding

Signs to watch for

  • vomiting or diarrhoea (if rich or salty)
  • picky eating if fed too often

Good to know

Choose tuna in spring water, not brine or oil, and keep it as an occasional small treat. Cats fed mostly tuna can develop nutritional deficiencies.

Sources

Sources

  1. Cats Protection – Cats and human foods
  2. ASPCA – People Foods to Avoid Feeding Your Pets

Checked against these sources in October 2026.