Foods that cats are prohibited from eating include onions, garlic, ginger, leeks, chocolate, alcohol, milk, dairy products, caffeine, grapes, raisins, raw eggs, raw fish, etc. If the cat eats these foods by mistake or eats too much at one time, it will suffer from food poisoning, which may even be life-threatening. Therefore, do not give your cat random food, but make cat food the main food.