The Short Answer
Ripe red flesh is fine in tiny amounts. Green parts, stems, and leaves are toxic.
Why Tomatoes Needs Caution
Ripe tomato flesh contains very little solanine. Green/unripe tomatoes, stems, and leaves contain enough to cause real GI and neurological symptoms.
Solanine and tomatine are glycoalkaloids that the tomato plant uses as natural pesticides. They concentrate in green tissue and decay as the fruit ripens. Dogs are more sensitive than humans because of body weight and slower clearance.
How Much Is Actually Safe?
A few small chunks of ripe red tomato as a topping. Zero green parts. Skip if your dog has GI sensitivity.
Symptoms to Watch For
- Vomiting
- Diarrhea
- Lethargy
- Loss of coordination
- Dilated pupils (severe cases)
When to Call the Vet
If your dog raided the garden and ate stems, leaves, or green tomatoes. Symptoms can show up 1-12 hours later.
ASPCA Animal Poison Control: (888) 426-4435 · $95 fee · 24/7
The Dog Dad Take
Keep your tomato plants behind a fence. The plant itself is more dangerous than the fruit. Lost a friend's puppy this way years ago.
Frequently Asked
Is tomatoes safe for dogs?
Ripe red flesh is fine in tiny amounts. Green parts, stems, and leaves are toxic.
How much tomatoes can I give my dog?
A few small chunks of ripe red tomato as a topping. Zero green parts. Skip if your dog has GI sensitivity.
What are the symptoms if my dog ate too much tomatoes?
Vomiting. Diarrhea. Lethargy. Loss of coordination. Dilated pupils (severe cases).
When should I call the vet?
If your dog raided the garden and ate stems, leaves, or green tomatoes. Symptoms can show up 1-12 hours later.