A part of the Allium family, which also includes onions and garlic, leeks (prasa, πράσα, in Greek) are native to the Middle East and the eastern Mediterranean region. The hardy crop has been widely used since at least the second millennium B.C., first by the ancient Egyptians and Mesopotamians and later by the Greeks and the Romans, who spread it across Europe. Nutrient dense, leeks are rich in vitamins and minerals. The ancient Greek physician Hippocrates recommended the vegetable for the proper functioning of the urinary system and as a treatment for excessive swelling (it had additional medicinal uses in ancient times, including as a remedy to strengthen the throat and voice).