What vegetables are healthier to eat in summer?

The poison of summer-heat and dampness will affect human health. Eating some cool vegetables is conducive to promoting fluid production and quenching thirst, relieving summer heat, clearing away heat and purging fire, expelling toxin and relaxing bowels. Bitter gourd, cucumber, tomato, eggplant, celery, lettuce, asparagus, watercress and cold potato are all cold vegetables. In addition, summer is a season of frequent diseases, especially intestinal diseases. Eating more "sterilized" vegetables such as garlic, onion, leek, green onion and chives can prevent diseases.