What should my cat not eat? Foods poisonous to cats
It is not the case that a cat will fall ill the moment you give him something other than cat food or cat treats. Nevertheless, human food often contains a lot of added sugars and too much salt. Not healthy for us, and certainly not healthy for cats. In addition to sugar and excessive salt, you are better off not giving the following products to cats.
Garlic and onions
Eggs contain the substance N-propyl disulphide, which destroy cats’ red blood cells. This causes a form of anaemia. Garlic also contains this substance, but to a lesser extent.
Theobromine is a substance in chocolate that is extremely poisonous to cats (and dogs).
Grapes / raisins
Although fruit is not generally bad for cats, it is better not to give them any grapes (nor, therefore, any raisins). They contain a substance that is bad for both cats and dogs. It is not yet known what substance is the culprit, but prevention is better than cure.
Most cats are lactose-intolerant. What this means is that lactose (milk sugar) and dairy products can cause flatulence.
Please do not give your cat raw eggs. You see, these contain avidin, an anti-vitamin that adversely affects the metabolism of fats, sugar, amino acids and energy.