Nutritional issues in toddlers remain a public health challenge in Indonesia, particularly related to stunting, malnutrition, and feeding patterns that do not comply with the principles of balanced nutrition. The lack of knowledge of mothers as primary caregivers is one factor contributing to inappropriate child feeding practices. This activity aims to improve the knowledge of mothers of toddlers regarding balanced nutrition through health education at the Pagerejo Village Integrated Health Post (Posyandu). The method used is a participatory educational approach through interactive counseling, discussion, and evaluation using a pre-test and post-test design. The activity was carried out on February 18, 2026, at the Pagerejo Village Health Post (Ponkesdes), involving 30 mothers with toddlers aged 0–5 years. The material provided included the concept of balanced nutrition, the "Isi Piringku" principle, toddler nutritional needs, the importance of animal protein, and stunting prevention. The evaluation results showed an increase in the average knowledge score from 58.6 in the pre-test to 79 in the post-test, with a percentage increase of 34,8%. In addition, participants showed high enthusiasm during the discussion session and expressed a commitment to implementing a balanced nutritional diet at home. The conclusion of this activity is that balanced nutrition education at Posyandu (Integrated Health Post) is effective in increasing the knowledge of mothers of toddlers and has the potential to encourage changes in more appropriate child feeding behavior. Continued education and the active involvement of health cadres are necessary to maintain the program's sustainability.