Economic development affects people's lifestyle and unconsciously changes their tastes and tastes. The more developed the economy, the more they care about the food and quality. So this is why in the 1980s, when they were relatively scarce, they ate less and needed less. In the 1990s, people were relatively rich in materials, ate more, had more patterns, and were more knowledgeable, so they were willing to pursue other staple foods besides three meals a day.