Cats can eat bread, but in moderation. A cat's digestive system has limited capacity to digest carbohydrates (like bread). Eating a small amount of bread may not cause adverse reactions, but eating too much can easily lead to indigestion, bloating, vomiting, diarrhea, loss of appetite, and other gastrointestinal issues.
The main nutrients in bread slices are starch and sugar, which are not ideal sources of nutrition for cats. Cats are carnivores, and their digestive systems have limited capacity to digest starch.
