The Capital Area Humane Society says the fat cats are on sale this summer for $15 each or two for $20, instead of the usual $70 adoption price.
Development manager Mary Hiser says the cats packed on the pounds before arriving at the shelter, and the extra weight can cause them health problems.
The Columbus Dispatch reports that nine of the shelter's 55 cats are overweight. Volunteers keep them in an area that offers extra room to run and burn off calories.
The largest cat is a 6-year-old black-and brown shorthair named Zebe, who weighs 23 pounds.
