Lettuce Romaine
Cos is an old-fashioned winter lettuce that is also known as romaine. It has green, crisp, extended leaves, tightly wrapped to form an elongated head.
Nutritional Value
Excellent source of dietary fiber, vitamins A, C, and K, thiamin, folate, iron, potassium, and manganese. It is also a good source of riboflavin, vitamin B6, calcium, magnesium, phosphorus, and copper.