In recent years, scholars have a great controversy about the advantages and disadvantages of China people's emphasis on food. Eugene N. Anderson, an American scholar, pointed out in his book "China Cuisine" that Chinese mainland has the highest mountain peak and the lowest basin, and is rich in animal and plant resources, so there are many delicious foods to choose from. China people chose the most economical and malnourished food, thus feeding a large population. Nie Wentao, a Chinese scholar, believes that since there are many foods to choose from, it is relatively calm and rational to choose whole grains, which is a way of life advocated by ancient nobles. This is a national habit related to China's thought of keeping in good health, and it is to protect grain. In addition, there are also differences between the two sides on the issue of protein content in grains as a standard to judge their food quality.