1, the water content of lettuce per 100g is as high as 94%-96%, protein 1- 1.4g, carbohydrate 1.8-3.2g, and vitamin C10-/kloc.

2. Lettuce contains a lot of beta carotene, antioxidants, vitamins B 1, B6, vitamin E and vitamin C, as well as a lot of trace elements such as dietary fiber, magnesium, phosphorus and calcium and a small amount of iron, copper and zinc.

Characteristics of lettuce

Lettuce roots are shallow and dense, and the roots are developed. Root groups are mainly distributed in the soil layer of 20 ~ 30 cm on the surface. Stem shortened in vegetative growth period, and flowering stem in later period. Leaves alternate, elliptic or obovoid; The leaves are green, yellow-green, purple, etc. The leaves are withered; Leaf margin undulate or lobed, serrate. The inflorescence of lettuce is a conical head with yellowish flowers, achenes, dark brown or silvery white, and crested hairs. The leaves are crisp, fresh and tender, and the taste is refreshing.

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