5 Foods Dogs Shouldn't Eat

1. Chocolate: You've likely heard that you're never supposed to feed a dog chocolate and there's a reason for that. That delicious candy contains caffeine-like stimulants known as methylxanthines. If ingested in large amounts, chocolate can cause vomiting, diarrhea, irregular heartbeat, seizures and even death.
2. Grapes and raisins: While this fruit is nutritious for you, it's toxic to dogs and can cause kidney failure.
3. Onions: They may make you cry, but they can make your dog very sick by causing damage to his red blood cells.
4. Avocado: Avocado leaves, fruit, seeds and bark contain a toxin called persin that can cause upset stomach and breathing difficulties.
5. Alcohol: Even drinking a small amount of alcohol can result in significant intoxication for a dog, which can lead to vomiting, seizures and even death.
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