Introduction. One of the most significant issues that require close attention in the treatment and rehabilitation of patients with coronovirus infection is the analysis of the nutritional status of patients and the development of approaches to nutritional support for patients. Aim of study. Analysis of nutritional status of patients infected with COVID-19 and studying the effectiveness of specialized products dietary therapeutic and preventive nutrition during illness and recovery period. Materials and methods. A survey of 283 patients with mild and moderate severity was conducted. The survey showed a significant change in eating behavior in patients during the disease. To assess the effectiveness of nutritional support during the disease and during the recovery period, 36 individuals took a specialized product of dietary therapeutic and preventive nutrition “Detoxifying Kissel” LEOVIT DETOX daily after the diagnosis of COVID-19, both throughout the entire period of the disease, and within 2 weeks after the disease and going to work. Results and discussion. The survey showed the presence of a significant range of eating disorders in patients with coronavirus disease. It was found that in 90% of the respondents during the day, the main meal was 3 or more times. During the disease, the number of main meals decreased in 40% of individuals, and only in 4% of patients this figure increased. When using nutritional support with dietary therapeutic and prophylactic foods during the disease, patients noted a significant decrease in weakness and fatigue, temperature fluctuations, fears, anxiety, suspiciousness and other symptoms began to disappear. The continuation of the intake in the post-ovoid period of the use of nutritional support with the dietary therapeutic and preventive food product “Detoxifying Kissel” LEOVIT DETOX, contributes to a faster recovery of patients. Conclusion. The use of the dietary therapeutic and preventive food product “Detoxifying Kissel” LEOVIT DETOX is an effective method of nutritional support both during the disease and in the post-ovoid period. Long-term use of detoxification products (at least 3–6 months) after the disease is recommended.