Three skills of choosing healthy vegetables:
1, know dark green leafy vegetables
Dark green leafy vegetables with stems and leaves as the main edible part have the highest nutritional value. Such as spinach, rape, Chinese cabbage, chrysanthemum, cabbage and so on. Chinese cabbage and Chinese cabbage are not counted, because their leaves are too light, that is to say, the nutrients can't meet the standards of dark green leafy vegetables. Some vegetables with high nutritional value and dark green color also belong to dark green leafy vegetables, such as cauliflower and rape heart.
It is more safe to sell vegetables in the freezer.
The freshness of vegetables is very high. After harvesting at room temperature, the decomposition rate of vitamins is very fast, but the content of toxic substance nitrite rises rapidly. Therefore, vegetables should be stored in the refrigerator instead of in the open air. Plastic wrap can delay water loss and reduce the loss of nutrients. Therefore, the food with plastic wrap in the freezer is worth buying with confidence.
If there is no freezer, choose vegetables with the freshest appearance and crisp texture, because stale vegetables are easy to lose water and wilt, and the leaves or stems lose their stretching state, and even the leaves are flooded or even fall off. Also pay attention to the date on the vegetable package. Generally, clean vegetables should be served on the same day. Only by purchasing this vegetable can we really ensure safety and nutrition.
Step 3 know about food labels
According to the cultivation management and quality certification of vegetables, they can be divided into four categories: ordinary vegetables, pollution-free vegetables, green food vegetables and organic vegetables. Among them, organic vegetables are planted without any synthetic substances, and green foods do not contain any medium and high toxic substances. Pollution-free vegetables promise that there will be no problem of excessive pesticides. Whether it is a certain vegetable depends on whether there is a corresponding product quality certification label, not just whether there is plastic wrap. Vegetables without plastic wrap, if you know the brand and origin and look fresh, you can also buy them with confidence.