Dietary habits of preschool children play a crucial role in their healthy growth and development. Proper nutrition during this period can lay the foundation for lifelong health. This thesis explores a range of key topics related to children's dietary habits. The emphasis is placed on the importance of quality nutrition as a basis for children's healthy growth and development. Proper alignment with nutritional needs ensures the acquisition of necessary nutrients for optimal bodily functioning. The food pyramid, a graphical representation of recommended meals, presents an optimal arrangement of different food groups to achieve a balanced diet. It underscores the importance of fruits, vegetables, whole grains, proteins, and fats and aids in visualizing a proper nutritional balance. Issues arising from an unbalanced diet, such as excessive calorie intake, nutrient deficiencies, or an excess of unhealthy foods, indicate potential adverse effects of such dietary patterns on health. Additionally, the paper explores the significance of protecting children from allergies and why proper nutrition is crucial for a child's brain health. The research conducted in the paper encompassed 67 parents from the cities of Zagreb and Šibenik to analyze potential differences in children's dietary habits between these two cities. Participants completed a questionnaire containing 30 questions about their children's dietary habits. The research results point to similarities in responses from parents in both cities in most cases. However, noticeable differences emerge in responses regarding obstacles to promoting healthy dietary habits among children, the frequency of parental and children's involvement in meal planning and preparation, and the frequency of family activities that encourage healthy eating. These findings provide insights into specific factors that may influence children's dietary habits in different cities and underscore the importance of targeted interventions and education to promote healthy dietary habits within the child population.