Introduction: It is vital to be interested in early childhood's social determinants and different pathologies because this period is the most important for growth and physical-cognitive development. Objective: To describe the nutritional condition of children under six years in Santa Marta. Method: A descriptive study was conducted with a sample of participants from a neighborhood in Santa Marta, Colombia. Results: 112 children were evaluated, 54% were boys, and 35% presented nutritional alterations (risk of malnutrition, malnutrition, overweight, and obesity). Conclusions: Approximately one-third of preschool children in a neighborhood of Santa Marta, Colombia, present nutritional alterations. It is necessary to study the factors associated with these alterations.