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Can cats eat tomato?

A little

A little ripe red flesh is fine — green fruit, stems and leaves are toxic.

How much

Up to per day 10g about 1 pieces · 1 cherry tomato ≈ 10 g

4 kg adult cat, treats ≤10% of ~200 kcal/day

PreparationFully ripe, small pieces.

Why

Tomatoes are nightshades: leaves, stems and unripe green fruit contain solanine and tomatine. Ripe red flesh is very low risk. Ketchup adds sugar, salt and onion.

If your cat has a condition

  • Kidney disease OK to give Lower than the 2,000 mg/1000kcal kidney-diet line. Phosphorus 1,526 mg/1000kcal
  • Diabetes OK to give At this portion it is only 0.4 g of carbohydrate. Carbs 90% of calories
  • Heart disease (HCM) OK to give Low in salt. Sodium 105 mg/1000kcal
  • Urinary stones OK to give No specific stone concern known — water intake matters more.

Nutrition per 100 g

Nutrients per 100 g, with phosphorus also shown per 1000 kcal
Calories19 kcal
Protein1.03 g
Fat0.18 g
Carbohydrate4.26 g
Phosphorus29 mg 1,526 mg/1000kcal
Sodium2 mg
Potassium250 mg

Source: Korea MFDS Food Nutrient Database — 토마토_생것

SourcesReviewed 2026-10-24

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