<![CDATA[Exclusive breastfeeding and appropriate family practices are essential components of stunting prevention. Digital health interventions may provide an accessible approach to strengthening families’ knowledge, attitudes, and practices related to child nutrition and care. This study aimed to determine the effect of the Digital Smart-Parenting intervention on families’ knowledge, attitudes, and practices regarding exclusive breastfeeding and stunting prevention. A pre-experimental one-group pretest–posttest design was conducted among 50 family members of infants or children under five years of age in nine subdistricts of Sukabumi Regency, Indonesia. Participants were selected using purposive sampling and used the Digital Smart-Parenting application for one month. Knowledge, attitude, and practice scores were assessed before and after the intervention and analyzed using paired-samples t-tests. After the intervention, knowledge scores increased with a mean difference of 0.58 (95% CI: 0.23–0.92; p = 0.001; Cohen’s d = 0.48). Attitude scores increased with a mean difference of 1.86 (95% CI: 0.81–2.90; p < 0.001; Cohen’s d = 0.50). Practice scores increased with a mean difference of 2.16 (95% CI: 1.06–3.25; t(49) = 3.9; p < 0.001; Cohen’s d = 0.55). Digital Smart-Parenting was associated with significant improvements in families’ knowledge, attitudes, and practices related to exclusive breastfeeding and stunting prevention, with moderate effect sizes.]]>
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