Only a little, and only fully ripe red flesh — avoid green fruit and all green plant material.
Why is Tomato rated this way?
Green parts of the tomato plant and unripe fruit contain higher concentrations of problematic glycoalkaloids than fully ripe flesh.
The rating is not a claim that the food is necessary or a personalized dose. It separates an occasional possible extra from foods that require conditions or create an avoidable risk. A nutritionally complete commercial food or professionally formulated diet remains the foundation.
This assessment also covers common searches such as tomatoes, provided they refer to the same unprocessed food.
How to prepare Tomato more safely
Use only a fully ripe red tomato, remove the stem end and all green parts, wash it and cut it small.
Do not feed
stem, leaves, vines, green or unripe fruit
Processed products
Tomato sauce, ketchup, soup, pizza and canned preparations often contain onion, garlic, salt, sugar or other seasonings.
Always read the full ingredient list on mixed products. Sugar-free products may contain xylitol; onion, garlic, cocoa, alcohol, substantial salt, or fat can make a product unsuitable even when its main ingredient looks harmless.
Why only a small amount?
Tomato is not a necessary part of a dog's diet. If the stated conditions are met, test only a small portion and include it in the daily feeding plan. At about 18 kcal per 100 g, the portion can become relevant quickly depending on the food. Individual veterinary guidance takes priority for dogs with excess weight, sensitive digestion, or a medical diet.
A gram amount without the dog's body weight, main food, activity, and health would create false precision. For suitable treats, start small, monitor stool, and subtract their calories from the daily ration. Puppies, very small dogs, and dogs with excess weight, diabetes, pancreatitis, suspected allergy, or a therapeutic diet need particular caution.
Warning signs and the right next step
Seek veterinary advice if a larger amount of green plant material has been eaten or if signs develop.
Repeated vomiting, marked lethargy, tremors, poor coordination, breathing difficulty, pain, abdominal swelling, seizures, or a change in consciousness are not situations for an online home remedy. Call a veterinary practice or emergency clinic directly. Keep the packaging, estimated amount, time, and body weight available, and never induce vomiting without specific instruction.
Common questions about dogs and Tomato
Can dogs eat Tomato?
Only a little, and only fully ripe red flesh — avoid green fruit and all green plant material. Green parts of the tomato plant and unripe fruit contain higher concentrations of problematic glycoalkaloids than fully ripe flesh.
How should Tomato be prepared for a dog?
Use only a fully ripe red tomato, remove the stem end and all green parts, wash it and cut it small. Do not feed: stem, leaves, vines, green or unripe fruit.
Which Tomato products are unsuitable for dogs?
Tomato sauce, ketchup, soup, pizza and canned preparations often contain onion, garlic, salt, sugar or other seasonings.
How much Tomato can a dog eat?
Tomato is not a necessary part of a dog's diet. If the stated conditions are met, test only a small portion and include it in the daily feeding plan. At about 18 kcal per 100 g, the portion can become relevant quickly depending on the food. Individual veterinary guidance takes priority for dogs with excess weight, sensitive digestion, or a medical diet.
Sources used for this assessment
- Tomato PlantASPCA Animal Poison Control Center
Plant database entry on the risks of unripe fruit and green parts of the tomato plant.
Source checked 26 July 2026 - Feeding Plans for Healthy, Appropriate Weight Cats and DogsAmerican Animal Hospital Association
Clinical guideline for accounting for extras and treats within a complete daily feeding plan.
Source checked 26 July 2026 - FoodData CentralU.S. Department of Agriculture
Primary database used for rounded calorie reference values per 100 grams; variety, ripeness and preparation can change these values.
Source checked 26 July 2026
This page provides general orientation. It does not replace veterinary assessment after possible poisoning, with symptoms, or for a dog with an existing medical condition.