Cats can eat eggs, but raw eggs are not recommended due to the risk of bacterial contamination such as Salmonella, which can cause serious illness. Raw egg whites also contain avidin, an enzyme that can prevent the absorption of biotin (a B vitamin), potentially leading to deficiencies. Cooked eggs are safer and can be a nutritious treat for cats in moderation, preferably without added fats or seasonings. Egg yolks, whether raw or cooked, are generally safe and contain beneficial nutrients. For safety and health, cooked eggs are the preferred option for feeding cats.