<human>:  Why did the Romans eat so much bread?
<bot>: Bread was a staple of the ancient Roman diet. Bread was a convenient and easy way to store food. In ancient Rome, bread was made from wheat, barley, or spelt, and was baked in a clay oven. Bread was also a major source of nutrition for the Romans. In addition to being a staple food, bread was also used as a form of currency, especially in the city of Rome.