Can Dogs Eat Tomatoes? It Depends — Here's What You Need to Know

Tomatoes are one of those foods that fall into a gray area for dogs — not entirely safe, not entirely toxic. The answer depends on which part of the tomato and how ripe it is. Here's the full breakdown.

Are Tomatoes Safe for Dogs?

Ripe tomato flesh: generally safe in small amounts. Ripe red tomatoes contain low levels of the compounds that make other parts of the tomato plant dangerous, and a small amount of ripe tomato flesh is unlikely to harm a healthy adult dog.

Green tomatoes, stems, and leaves: toxic. The tomato plant belongs to the nightshade family and contains two compounds — solanine and tomatine — that are toxic to dogs. These are found in highest concentrations in the green parts of the plant: unripe tomatoes, stems, leaves, and vines.

Signs of Tomato Plant Toxicity in Dogs

• Gastrointestinal upset (vomiting, diarrhea)
• Lethargy and weakness
• Tremors or seizures (in severe cases)
• Cardiac effects (in large ingestions)

What About Tomato-Based Products?

• Tomato sauce and ketchup: Avoid — contain added salt, sugar, garlic, and onion, all of which are harmful to dogs
• Canned tomatoes: Avoid — high sodium content
• Sun-dried tomatoes: Avoid — concentrated and often seasoned
• Plain ripe tomato: Small amounts are generally fine for healthy dogs

How to Safely Share Tomato with Your Dog

If you want to share a bit of tomato with your dog:

• Use only fully ripe, red tomatoes
• Remove all stems, leaves, and green parts
• Offer a small piece of the flesh only
• No seasoning, sauce, or additives

For a safer, more straightforward treat option, Crumps' Naturals Sweet Potato Treats are single-ingredient, naturally nutritious, and completely safe for dogs — no gray areas.

Final Thoughts

A small piece of ripe tomato flesh is unlikely to harm a healthy dog, but the risks from the green parts of the plant are real. Given the complexity, many vets recommend simply avoiding tomatoes altogether and choosing safer fruits and vegetables as treats instead.