Lettuce is the stem and leaves of lettuce in the family of Asteraceae, also known as lettuce.

According to analysis, lettuce is rich in calcium, carotene, vitamin C, the content of the leaf is higher than the stem. Every 100 grams of lettuce contains 0.6 grams of protein, 0.1 grams of fat, calcium 7 mg, phosphorus 31 mg, iron 2 mg, carotene 0.02 mg, vitamin C1 mg. And every 100 grams of lettuce leaves, containing calcium up to 110 mg, carotene up to 2.24 mg, vitamin C for 31 mg. Therefore, when eating lettuce, do not throw away the green leaves. Japanese research has found that hot water extracts of lettuce have a 90 percent inhibition rate of JTC-26 cancer cells.

Lettuce and honey should not be eaten together honey is rich in wax, with laxative effect, but the food of honey medicine is cool, lettuce cold, the two together, adverse gastrointestinal, easy to diarrhea, so the two should not be eaten together.

Lettuce and cheese should not be eaten with the "Golden Chamber" records: "white chicory can not **** cheese food, for katydids." "Medical Zong Jinjian" records: "white chicory taste bitter cold, cheese taste sweet hot, a cold a hot and become wet, wet is born of insects, so the day can not be eaten." Cheese is greasy food, and lettuce cold, the two with food, easy to cause indigestion, or abdominal pain and diarrhea. At the same time, lettuce raw food, because the washing is not clean, easy to be contaminated by parasites, such as hookworms, roundworms, etc., are not conducive to health.

The best way to combine romaine lettuce with black fungus