Summary Lettuce is leaf lettuce, named after it is suitable for raw food, with crisp texture and fresh flavor. Among the modern people whose meat consumption has obviously increased, lettuce brings a refreshing and delicious feeling and is quite popular among people.
There are generally two kinds of lettuce in the market: spherical cabbage and buttered lettuce with wrinkled leaves (mosaic lettuce).
3. 1 mosaic lettuce leaves are slender, with large wrinkles, deep serrated edges, green color, loose leaves and no pilling, and more crude fibers.
3.2 Bunge-leaf Lettuce Bunge-leaf Lettuce leaves are rolled into balls and divided into green leaves, white leaves, purple leaves and red leaves according to color. Green leafy vegetables are rich in cellulose, while white leafy lettuce has thin leaves and good quality, while purple leafy lettuce and red leafy lettuce are bright in color and fresh in texture.
4 Nutrients of Lettuce Lettuce is rich in nutrients, and each 500g contains 6.9g of protein, 5.5g of fat/kloc-0, 5.7g of carbohydrate/kloc-0, 2.5g of crude fiber, 20 172mg of calcium, 0/mg of phosphorus, 5.9mg of iron and 0.05mg of thiamine.
Analysis of nutritional value of lettuce 1. Lettuce contains dietary fiber and vitamin C, which can eliminate excess fat, so it is also called slimming lettuce.
2. Because its stems and leaves contain lettuce, it tastes slightly bitter, and has the functions of analgesia and hypnosis, lowering cholesterol and adjuvant treatment of neurasthenia;
3. Lettuce contains mannitol and other effective ingredients, which has diuretic and blood circulation promoting effects;
4. Lettuce contains an "interferon inducer", which can produce interferon from normal human cells, thus producing an "antiviral protein" that inhibits viruses.
6 people who are suitable for eating lettuce can eat lettuce in general, and people who have frequent urination and cold stomach should eat less.
7 the therapeutic effect of lettuce lettuce is sweet and cool;
Has the effects of clearing away heat, refreshing mind, clearing away liver-fire, benefiting gallbladder and nourishing stomach.
Chinese medicine believes that lettuce is cool, bitter and sweet, enters the gastrointestinal tract, and is suitable for people with adverse urination, hematuria and milk obstruction [1].
Eight suggestions for lettuce 1. Because there may be pesticide and fertilizer residues, be sure to wash them before eating them raw;
2. It is extremely sensitive to ethylene and should be stored away from apples, pears and bananas to avoid brown spots;
3. Whether it is fried lettuce or boiled lettuce, the time should not be too long, so as to maintain the crisp taste of lettuce;
4. Lettuce torn into pieces by hand will be more brittle than a knife;