The first category: this category is rich in carotene, riboflavin, vitamin C, calcium, cellulose and so on. It has comprehensive nutritional components and high nutritional value. It mainly includes Chinese cabbage, spinach, shepherd's purse, leek and amaranth.

2

The second category: the nutritional components of this kind of vegetables are not as comprehensive and balanced as the first category, and the nutritional value is second only to the first category. These vegetables are usually divided into three types: the first one contains riboflavin, including all fresh beans and soybean sprouts; The second kind contains more carotene and vitamins, mainly carrots, celery, green onions, green garlic, tomatoes, peppers and so on. The third category mainly contains vitamin C, mainly including Chinese cabbage, cabbage and cauliflower.

three

Category III: These vegetables are high in calories and low in vitamins. Mainly potatoes, yams, taro, pumpkins and so on.

four

The fourth category: this kind of vegetables contains a small amount of vitamin C, but other nutrients are few and their nutritional value is low. It mainly includes wax gourd, bamboo shoots, eggplant, water bamboo and so on.