How did humans evolve to choose grains as their staple food?

You're right, no one likes the taste and taste of grains, but there is no way, in the absence of fruits, vegetables, meat, humans can only choose grains to supplement nutrition, and grains happen to exist in a large area in the middle latitudes. When people first followed the prey or grazing through West Asia, found wild wheat, they harvested it and used it as food, and the next year happened to pass through here, found that the wheat grew again, so they harvested it home, and over time people discovered this low-cost way of life, so the grain was gradually domesticated by humans, and since then the human diet has become more economical, bidding farewell to the gathering-hunting society and turning to the agricultural society. But as far as the nutrition of grains is concerned, it is far less than fruit and meat, and only plays a role in filling hunger, but in ancient societies, it is not easy to be full, and people have to give up the pursuit of fruits and meat.

All the high nutrients contained in grains, almost all the corresponding substances can be found in fruits and meats, and fruits and meat are more advanced, as far as sugar is concerned, most of the grains provided by grains are polysaccharides, which need the human body to consume energy to decompose and digest into nutrients that can be utilized, eating too much starch causes a burden on digestion, and the monosaccharides, disaccharides and other sugars in fruits can be directly absorbed by the human body, in addition to proteins, vitamins, fiber, minerals, etc., grains and fruits under the same unit, The meat comparison is at a significant disadvantage. It is recommended to eat as little staple food as possible if the economic conditions allow, and fruits, vegetables and meat, as well as seafood are the most nutritious foods. <>

In fact, in addition to cereals, potatoes (sweet potatoes, potatoes), dried fruits (raisins, figs), and soybeans were once used as staple foods. Why did humans choose these things as staple foods in the process of evolution? If you think about it, all staple foods have two characteristics:

1. High yield, high energy density, 2, storage resistance, the second point is extremely important. Because humans have not evolved the function of hibernation, there must be enough food in the winter to ensure the continuation of the population. And if we use fruit as a staple food, even with the blessing of high-tech equipment such as refrigerators, it is difficult for us to store fruits until the end of winter.

The four seasons of the earth make most of the crops harvest in late summer and mid-autumn, and only crops that can be stored can provide a stable winter ration. Apparently humans will spend more energy domesticating these crops and ingesting more of these crops as calories**. Eventually, these crops became staple foods.

No single food can provide all the nutrients required by the human body, so it is necessary to eat a variety of foods to complement each other's strengths and weaknesses to achieve a balanced diet. Cereals are the main part of the traditional Chinese diet. The purpose of proposing cereals is to remind people to maintain the good tradition of China's diet and prevent the occurrence of ills in the dietary mix of developed countries.

Rice and wheat should not always be milled too finely, because most of the vitamins, minerals and dietary fiber are found in the surface layer of cereals.