Is lettuce blind?

Is lettuce blind? Right. A certain substance in lettuce has a stimulating effect on the optic nerve. It is recorded in ancient books that eating too much lettuce makes people blurred, and if they stop eating for a few days, they can recover on their own, so people with weak vision should not eat more, and people with eye diseases, especially night blindness, should also eat less.

Who should not eat more lettuce?

1. It is not suitable for menstrual women to eat cold lettuce.

Lettuce cold, menstrual female consumption or lead to dysmenorrhea, irregular menstruation, aggravate dysmenorrhea symptoms.

2. deficiency of spleen and stomach or cold physique should not eat too much.

Lettuce is a cold food, but also stimulate gastric juice secretion, deficiency cold physique or poor spleen and stomach people eating will be colder.

3. People with eye diseases should not eat more

Ancient books record that lettuce is poisonous, and people should not eat too much. Eating too much makes people feel poisonous, and ginger juice is used to solve it. Therefore, people with eye diseases should not eat more lettuce.

4. Enough is enough

Eat lettuce in the right amount, which may cause poisoning such as dizziness and drowsiness, and may also cause night blindness.

Second, the distribution of lettuce.

Lettuce originated from the Mediterranean coast and was introduced into China through West Asia at the beginning of the seventh century.

3. Growth habits of lettuce

Lettuce is sensitive to the acidity and alkalinity of soil and is suitable for planting in slightly acidic soil. The root system of lettuce is shallow, the absorption capacity is weak, and the demand for oxygen is high. Sand loam and loam are the best soil for planting lettuce.