shredded lettuce salad

A simple salad of shredded lettuce. The taste is sweet, sour and refreshing.
The carbohydrate content in lettuce is low, while the content of inorganic salts and vitamins is rich, especially the content of niacin. Niacin is an activator of insulin, and diabetics often eat lettuce to improve the metabolic function of sugar. Lacunce also contains certain amounts of trace elements zinc and iron. Especially the iron in lettuce is easily absorbed by the body. Regular consumption of fresh lettuce can prevent and treat iron deficiency anemia.
lettuce also has the functions of increasing appetite, stimulating the secretion of digestive juice, and promoting gastrointestinal peristalsis. However, if you eat lettuce too much or frequently, because the lettuce biochemistry in lettuce has a stimulating effect on the optic nerve, a toxic reaction such as dizziness and sleepiness will occur, leading to night blindness or inducing other eye diseases, so it is not advisable to eat too much. Night blindness and eye diseases caused by eating too much lettuce will improve in a few days if you stop eating lettuce.