First, not superstitious about nutritional analysis. Any kind of vegetables, even weeds, will have some nutrients that the human body needs, but they are not necessarily what we urgently need.

Second, not superstitious, the more the better. No animal or plant is born to be the "perfect food" for human beings, which can provide all the nutrients needed by the human body. Only a diversified diet can ensure comprehensive nutrition.

Third, don't believe in strong alliance. Two good foods are bound to combine into one better food? Wrong. After they enter the stomach, they often decompose their own nutrients, instead of becoming a panacea like an alchemist.

Fourth, don't be superstitious about "curing all diseases" and don't be superstitious about tradition. After a long period of repeated experiments, science will come to a conclusion, and with the arrival of new technology and science, the conclusion may be overturned at any time. This is the attitude of science. Science is not absolutely "good" or "bad".