The canteen's meal menu is flat and the restaurant is not too thick, salty, or greasy. As a result, having lunch with meals has become a healthy and economical choice for many people. However, it is worth reminding that when preparing their own "benefiting lunch," gourd vegetables should be preferred.
Vegetables are an essential part of a meal. Because vegetables can provide a wealth of B vitamins and vitamin C, mineral potassium, magnesium, etc., as well as carotenoids, chlorophyll, dietary fiber and a variety of biologically active substances. Eat more vegetables can help the body eliminate toxins, control weight, improve face, but also to promote calcium and bone health. These benefits are staples, meat, eggs, seafood can not be replaced.
However, it should be noted that the lunchtime of the belt must pass several hours before it is ready to be consumed. During this time, vegetables will not only deteriorate the taste, lose nutrients, but even produce harmful changes to human health. Because vegetables generally contain more nitrate, especially vegetables with a large amount of nitrogen fertilizer. Nitrate is converted to nitrite by the action of nitrate reductase, and reacts with amino acids and lower amines in foods to form carcinogenic nitrosamines and nitrosamides, which may increase the risk of gastric cancer. .
Among all vegetables, leafy vegetables have the highest nitrate content, while melon vegetables are the safest. Therefore, cucumbers, zucchini, pumpkins, wax gourds and so on are all good choices. The melon vegetables not only have less harmful substances, but also have easy to maintain the taste and color, and the loss of vitamins is less than that of leafy vegetables. Finally, adding a little vinegar to cooking can also suppress the production of harmful substances and retain more nutrients. (He Hongju, Researcher, National Vegetable Engineering Technology Research Center)
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