Food restrictions for Bombay cats:
1. Milk and other dairy products: Like most cats, Bombay cats are lactose intolerant. Their digestive system cannot process dairy products, so if you feed a Bombay cat dairy products, it will get diarrhea because it cannot digest them.
2. Grapes and raisins: Grapes and raisins can cause kidney failure in Bombay cats. 
3. Coffee: Large amounts of coffee can be fatal to Bombay cats, and there is no antidote. Symptoms of caffeine poisoning in Bombay cats include restlessness, rapid breathing, palpitations, muscle tremors, and convulsions.
4. Chocolate: Chocolate can be fatal to Bombay cats. The toxic agent in chocolate is theobromine, which can cause abnormal heart rhythm, tremors, seizures, and even death in Bombay cats.
5. Onions: They can destroy red blood cells, causing anemia in Bombay cats, which can lead to death in severe cases.
6. Seafood such as octopus and squid: can cause indigestion, vomiting, and even death in Bombay cats.