Ripe red tomatoes are safe for dogs in moderation, packed with fiber, vitamins, and antioxidants! 🍅 But avoid green tomatoes, stems, and leaves—they contain toxic solanine and tomatine that can cause vomiting, weakness, or seizures; call your vet immediately if ingested. Skip tomato sauces, pizza, or sugar-free ketchup (often has deadly xylitol)! 🐶🚫