Vegetables in general are light. If we talk about cool vegetables, see below:Except for pumpkin and kumquat, other vegetables, such as bitter melon, loofah, cucumber, vegetable gourd, watermelon, melon, etc. are cool vegetables. Tomato, eggplant, celery, chrysanthemum brain, okra (purple angular leaf), lettuce, asparagus, beansprouts, sweet potatoes, etc. Are also cool vegetables.