No, dogs cannot eat grapefruit because of harmful components found in it.
Grapefruit is a citrus fruit that belongs to the rutaceae family. According to the ASPCA, it is toxic for both dogs and cats due to the essential oils and psoralens it contains. Even the grapefruit’s skin, peel, and seeds has psoralens, which can cause phototoxic dermatitis when your dog is exposed to UV light.
What to do if your dog accidentally eats grapefruit: Observe your dog for any of the following symptoms: vomiting, diarrhea, depression, and dermatitis (skin irritation). More importantly, contact your veterinarian immediately and inform him how much grapefruit your dog consumed. He may need urgent medical attention.
In summary: Grapefruit is packed with vitamins A and C, fiber, potassium, lycopene, and choline. It may seem like a good choice to feed your dog, but he may suffer from digestive complications because of it. Instead of grapefruit, try safe fruits such as apples, bananas, blueberries, cantaloupe, kiwi, mangoes, and oranges. You can also discover more human food he can safely eat in our “can dogs eat” blog category.