Can cats eat cooked chestnuts?
Yes, you can eat it.
Cooked chestnuts contain a lot of starch, and cats are carnivores that lack the enzymes to digest chestnuts. Eating too many chestnuts can lead to indigestion, loss of appetite, vomiting, diarrhea, and other symptoms. Long-term feeding can also cause malnutrition. If you want to feed your cat chestnuts, you can give them one or two occasionally, and you should not feed them chestnuts as a staple food. 
Eating cooked chestnuts can be very harmful to cats. If your cat shows any signs of discomfort, please contact a veterinarian immediately for examination and treatment.
