Lettuce has high nutritional value, is low in calories and high in water, making it suitable for everyday consumption

Lettuce is a common leafy vegetable of the genus Lactuca in the Asteraceae family. Its leaves are tender and its taste is refreshing; it can be eaten raw, quickly stir-fried, cooked in soup, or used as a side dish. Because it can be eaten directly raw, it is often the star of salads and is also one of the green leafy vegetables that appears very frequently on everyday dining tables.

The nutritional value of lettuce is mainly reflected in its high water content and low calorie content. It also contains dietary fiber, vitamin C, vitamin K, folate, and minerals such as potassium, and the leaves also contain a small amount of carotene. Dietary fiber helps promote intestinal peristalsis and maintain normal digestive function; for people who want to control their weight, eating more low-calorie vegetables such as lettuce can increase satiety without bringing too much of a calorie burden.

Common lettuce varieties include iceberg lettuce, butterhead lettuce, romaine lettuce, and curly-leaf lettuce, with leaf colors ranging from light green to purplish red. Generally speaking, darker-colored leaves contain relatively more pigment-related nutrients, so when choosing, it is worth combining different varieties to make the sources of nutrition more diverse.

Before eating lettuce, it is recommended to rinse it thoroughly with clean water to remove residual sand and impurities on the surface. When cooking, it should not be boiled for a long time; quick stir-frying or brief blanching is enough to avoid excessive loss of vitamins. People with weaker digestion should eat it raw in moderation, or eat it after blanching, which is more reassuring.