Although leeks can be eaten all year round, they have the best quality in early spring. In spring, leek leaves are like jadeite and roots are like white jade. Crisp and tender, delicious and fragrant. This is because it has experienced severe winter, and its roots and stems store a lot of nutrients. The quality of leek in early spring is the best, followed by that in late autumn, so there is a saying that "spring vegetables are fragrant and Natsuna stinks". Eat leeks in early spring to improve immunity.

Leek is not only a good medicine but also a good vegetable. Recent studies have found that Chinese chive and Chinese chive Huang Dou are good antimutagenic vegetables and have the function of preventing cancer. The cellulose contained in leek can promote intestinal peristalsis and effectively prevent habitual constipation and colorectal cancer, so it is called "intestinal grass". It should be pointed out that although leek is good, it is not suitable for everyone. People who fall in love with fire are too hot, and often have symptoms such as constipation, dry mouth and aphtha.

Extended data:

The unique pungent smell of leek is formed by its sulfide, which has certain bactericidal and anti-inflammatory effects and is helpful to improve human immunity. These sulfides in leek can also help the human body absorb vitamin B 1 and vitamin A, so leek is a more nutritious way to eat with pork food rich in vitamin B 1. The main nutritional components of leek are vitamin C, vitamin B 1, vitamin B2, nicotinic acid, carotene, carbohydrates and minerals.

Leek is also rich in cellulose. The content of cellulose in leek per 100g is higher than that in onion and celery. It can promote intestinal peristalsis, prevent the occurrence of colorectal cancer, reduce the absorption of cholesterol, and play a role in preventing and treating diseases such as arteriosclerosis and coronary heart disease. Leek contains a lot of crude fiber, which is not easy to digest and absorb, so you can't eat too much leek at a time, otherwise a lot of crude fiber will stimulate the intestinal wall and often cause diarrhea.

References:

Spring is the right time to eat leeks-People's Health Network-People's Network