Consumption of lettuce stimulates appetite and removes toxins from the body. Furthermore, it can also cure deficiency of hemoglobin and mineral salts resulting in clear and radiant skin. Lettuce, scientifically known as Lactuca sativa, was first cultivated by the Egyptians thousands of years ago. The Egyptians used the seeds to produce oil and also utilized the leaves of this useful vegetable. The plant also had cultural and religious significance in ancient Egypt, as it was considered to be sacred. Later, the Greeks and Romans also cultivated this crop.