Lettuce (Lactuca sativa) is known since time ancient Egyptians for its energizing, refreshing sedative properties. Lettuce spread to the Greeks and Romans, the latter of whom gave it the name "lactuca", from which the English "lettuce" is ultimately derived. Today, lettuce is one of the most common leaf vegetables and a basic ingredient of salad recipes. It is characterized by large, tender leaves, usually light green in color and red or purple in Red Lettuce. Both the leaves and the stems can be used, Most lettuce is used in salads, either alone or with other greens, vegetables and cheeses. Lettuce leaves can also be found in soups, sandwiches. Iceberg lettuce is the crunchy, pale vegetable you’ll often find added to your fast-food burger or diner salad when you eat out. It has a neutral taste and refreshing crunch, making it a favorite among children who won’t eat other kinds of lettuce. It’s not as rich in nutrition as many other greens, but it does provide some benefits.
Despite its reputation for being a complete zero on the nutritional scale, iceberg lettuce provides significant amounts of vitamins A and K. It also has small amounts of many other healthy nutrients. Although it’s low in fiber, it has a high water content, making it a refreshing choice during hot weather. It also provides calcium, potassium, vitamin C, and folate.
The nutrients in iceberg lettuce can help you to meet the standard daily requirements for several vitamins and minerals. They include:
Vitamin C : a powerful antioxidant that helps keep your immune system healthy.
Calcium: which keeps bones and teeth strong. It also supports muscle function, nerve function, and blood clotting.
Vitamin K: a vitamin that works with calcium to prevent bone fractures. It’s also integral for blood clotting.
Vitamin A (as beta carotene): a powerful antioxidant that helps to maintain night vision and eye health. It also supports cell growth.
Folate: a B vitamin that helps to make DNA and genetic material. It’s especially important for women who are pregnant or who are planning to become pregnant.
Potassium: a mineral that reduces blood pressure by lessening the effects of salt in the diet.