1. Tonify the kidneys and warm yang: Leeks are warm in nature and pungent in taste. They have the effect of tonifying the kidneys and activating yang, so they can be used to treat impotence, spermatorrhea, premature ejaculation and other diseases.

2. Benefit the liver and strengthen the stomach: Leeks contain special ingredients such as volatile essential oils and sulfides, which emit a unique spicy smell, which helps to regulate liver qi, increase appetite, and enhance digestive function.

3. Promote qi and regulate blood: The spicy smell of leeks has the effect of dispersing blood stasis, promoting blood circulation, and promoting qi and stagnation. It is suitable for bruises, nausea, enteritis, vomiting blood, chest pain and other diseases.

4. Loose intestines and relieve constipation: Leeks contain a large amount of vitamins and crude fiber, which can promote gastrointestinal motility, treat constipation and prevent intestinal cancer.

Extended information:

1. Leeks and beef cannot be eaten together: because leeks and beef are in conflict with each other, eating them together can easily cause poisoning.

2. Leeks and spinach cannot be eaten together: eating them together with spinach can easily cause diarrhea.

3. Leeks and honey cannot be eaten together: eating them together with honey can cause heartache.

4. Fried leeks should not be stored for too long: Since leeks contain a large amount of nitrates, if fried leeks are stored for too long, the nitrates will be converted into nitrites, which are not suitable for human consumption. Symptoms such as dizziness, nausea, bloating, and diarrhea are likely to occur after cooking; therefore, it is not advisable to eat fried leeks after they have been cooked overnight or stored for more than 4 hours.

Reference: People's Daily Online - Four major benefits of eating leeks in spring: Loose intestines, laxative, liver and stomach