A scientific diet is a healthy diet. Balanced diet and reasonable nutrition are the core of scientific diet. Perfect and reasonable nutrition can ensure the normal physiological function of human body, promote health and growth, improve the body's resistance and immunity, and is conducive to the prevention and treatment of certain diseases.

Reasonable nutrition requires that the diet can supply all the nutrients the body needs, and there will be no shortage or surplus; A balanced diet mainly ensures the needs of nutrients from the dietary aspect to achieve reasonable nutrition. It not only needs to consider the types and quantities of nutrients contained in food, but also needs to consider the reasonable processing methods of food, how to improve the digestibility and reduce the loss of nutrients during cooking.