To help parents keep their children healthy and fit, WHO has developed the Child Nutrition and Physical Activity Guide. In addition to parents, the guide may prove to be a useful tool for other adults (such as grandparents or caregivers) working with primary school-aged children. The Child Nutrition and Physical Activity Guide is published only in the Russian language with support from the Ministry of Health of the Russian Federation for use in Russian-speaking countries. It addresses the urgent need in some countries to improve child nutrition, particularly in areas that face a double health burden characterized by coexistence of undernutrition and overweight, obesity or noncommunicable diseases. Many children in those countries never eat breakfast, and their diet consists of large quantities of sweets and sugar-sweetened beverages with almost no vegetables and fruit. The WHO guide also offers ideas on how to stimulate children’s interest in physical activity, such as active play, exercise or sports. This is especially relevant for countries of the Commonwealth of Independent States (CIS), where, according to the latest findings, schoolchildren have a low participation in organized sports and exercise. On the other hand, a high proportion of schoolchildren walk to school every day. This could be a good starting point for CIS countries to make physical activity a daily habit that not only improves children’s physical health, but also promotes better mental health and well-being. The guide aims to ensure that children obtain the knowledge and skills to make healthy food choices, critically evaluate their diet and integrate physical activity into daily life.