In the jungle region of Peru, child malnutrition rates are still high, which is reflected in the lack of comprehensive policies that promote healthy feeding practices for children under 5 years of age. Therefore, there is little implementation of regional strategies to address nutritional problems in the child population. The objective was to evaluate the reality of a policy based on healthy practices to improve the nutritional status of children under 5 years of age in the region. The type of research was basic, the design was based on a systematic review based on previous studies, evaluations and data collected in the San Martín region. The population and sample were mothers of children under 5 years of age residing in the San Martín region, whose nutritional and feeding data were collected in studies and official records. A systematic review methodology was used to analyze the effectiveness of the regional policy on healthy practices. The instruments included databases, health records and evaluations of implemented programs. This review article examines the strategies, programs and outcomes of regional policy in order to evaluate their effectiveness in addressing malnutrition and improving the quality of life of children in this geographic area. Results, the healthy practices policy demonstrated a significant improvement in the nutritional status of children under 5 years of age in the San Martín region. A reduction in malnutrition rates and an increase in the adoption of healthier eating habits was observed. In conclusion, based on the articles reviewed, the implementation of a policy focused on healthy practices is successful in improving the nutritional status of children under 5 years of age in the San Martín region. Additionally, the importance of continuing to promote evidence-based interventions to address childhood malnutrition and promote appropriate eating habits from an early age is highlighted.