Parents are child's greatest role model, they should be example for all good values they want their child to adopt. That is especially challenging in modern society. The aim of this paper is to determine whether the parents' lifestyle, specifically their eating habits and the frequency of physical activity, affects the same habits in children. Also, goal is to find out if parents provide a balanced diet and enough opportunities for physical activity to preschool children. The research was studied on a sample of 200 parents, and a questionnaire was used as a measuring instrument. It contained a total of 37 questions which collected information about parents' and children's eating habits and level of physical activity. The research showed that majority of children eat properly, almost all respondents have four to five meals per day. Even though parents provide for a sufficient number of meals for their children, they are not so consistent when it comes to their own meals. It is positive that children do not consume fast food every day, but it is worrying that sweets and snacks are part of the daily diet of the majority, while for some, fruits and vegetables are not on the menu every day. Almost all parents are aware of the benefits that physical activity has on child's overall development, they encourage them to be physically active, they support them by participating in activities together, spending time in nature, and by spending holidays actively. However, the frequency of physical activity of most children and parents is not on acceptable level. Therefore, it is necessary to raise adult awareness about the importance of physical activity and balanced diet, so that they can pass on healthy habits to their children.