Quick Answer

Raisins is NOT safe for your Cats. Raisins are profoundly toxic to cats, producing acute kidney injury identical to that in dogs. The concentrated nephrotoxin overwhelms feline renal function, causing vomiting, lethargy, and rapid onset of oliguric failure. A cat can suffer fatal poisoning after eating just a few raisins, and dried fruit is easily accessible in trail mixes and baked goods. All raisin exposure must be treated as a critical emergency, with aggressive intravenous fluid support to try to prevent permanent kidney damage.