<![CDATA[Background: Stunting remained a major public health challenge in Indonesia and adversely affected children's physical growth, cognitive development, and future productivity. Improving maternal knowledge and attitudes through nutrition education played an important role in preventing stunting during the first 1,000 days of life. Educational booklets provided structured, accessible, and easy-to-understand information, making them a useful medium for delivering health education. Objective: This study examined the effect of booklet-based nutrition education delivered through lectures on the knowledge and attitudes of mothers of children under five years of age regarding stunting prevention. Methods: This study used a quasi-experimental design with a one-group pretest-posttest approach. A total of 42 mothers of children under five years of age were selected using purposive sampling. Participants completed a 10-item knowledge questionnaire and a 10-item Likert-scale attitude questionnaire before and after the intervention. The intervention consisted of nutrition education sessions supported by a booklet that contained information on the causes, risk factors, prevention, and appropriate nutritional practices related to stunting. Data were analyzed using the Wilcoxon Signed-Rank Test for knowledge scores and the paired t-test for attitude scores. Statistical significance was established at p < 0.05. Results: The mean knowledge score increased from 5.00 ± 1.73 before the intervention to 8.21 ± 1.26 after the intervention. The mean attitude score also increased from 25.17 ± 2.70 to 30.48 ± 2.05. Both improvements were statistically significant (p < 0.001), indicating that booklet-based nutrition education effectively enhanced participants' knowledge and attitudes toward stunting prevention. Conclusion: Booklet-based nutrition education delivered through lectures significantly improved mothers' knowledge and attitudes regarding stunting prevention. The findings suggested that booklets served as an effective and practical health promotion tool for community-based integrated health service posts (Posyandu) and other maternal and child health programs to support stunting prevention efforts.]]>
