It is not true that the new coronavirus is most afraid of three kinds of food, but patients should have a balanced diet. New coronavirus infection requires balanced nutrition, more vitamin-rich foods such as fruits and vegetables, protein-rich foods such as meat, eggs and milk, and high-calorie foods to strengthen the immune system. However, food does not have the effect of curing the disease or improving the symptoms. Neocoronavirus is afraid of high temperature, ultraviolet light and chlorine disinfectant, etc. 56 degrees for 30 minutes, ultraviolet light for 30 minutes and chlorine disinfectant can kill neocoronavirus. After infection, we suggest balanced nutrition, standardized antiviral and symptomatic supportive treatment under the guidance of specialists, and do not believe that food can kill the virus or that the virus is afraid of three kinds of food, so as to avoid delaying the treatment.