Dangerous Foods

Chocolate contains theobromine and caffeine, which cats metabolize very slowly. Even small amounts can cause severe poisoning; dark chocolate is most dangerous.

Onions and garlic contain organosulfur compounds that destroy red blood cells, causing hemolytic anemia. Both raw and cooked forms are toxic.

The exact toxic mechanism of grapes and raisins in cats is unknown, but they can cause acute kidney failure. Avoid any amount.

Xylitol is found in sugar-free gum, baked goods, and toothpaste. Even tiny amounts can cause hypoglycemia and liver damage in cats.

Cats are extremely sensitive to alcohol. Even small amounts — including alcoholic drinks, alcohol-containing dishes, or fermented foods — can cause severe poisoning.

Coffee, tea, energy drinks, and some medications contain caffeine, which is harmful to cats' hearts and nervous systems.

The exact toxic mechanism of macadamia nuts in cats is unknown, but they are known to cause neurological symptoms. Keep away from cats.

Large amounts of raw fish contain thiaminase, which destroys vitamin B1 over time, causing neurological problems. Occasional small amounts pose minimal risk.