A Systematic‐Narrative Review of Digital Interventions Preventing Childhood Obesity Among Culturally Diverse Families

Background Culturally and linguistically diverse (CALD) communities face barriers in accessing child health information, including digitally. Yet few have been developed for these populations. This narrative review aimed to identify and evaluate early childhood obesity prevention interventions for CALD communities. Methods An electronic search was conducted across Google Scholar and five scientific databases: MEDLINE (via OvidSP), Embase, Scopus, Web of Science and CINAHL. Included studies focused on children under 5 years old and evaluated digital interventions addressing nutrition, physical activity, screen time or sleep. Results Thirty‐four studies were included, most conducted in the United States (U.S) and targeting Hispanic/Latino families. Digital components varied widely, with telephone support the most common digital modality used ( n = 20), often combined with face‐to‐face sessions or SMS components. Seven studies used mobile apps or websites. Several interventions reported significant improvements in body mass index (BMI) scores, particularly among children of normal weight at baseline, with most delivered via telephone support or SMS messages from health professionals. Nutrition was the most reported outcome, with 13 studies reporting statistically significant improvements in breastfeeding practices. However, several noted that effects were not sustained at follow‐up. Physical activity outcomes were reported in seven studies and screen time in nine; significant improvements were observed in interventions using web‐based programmes, multilingual apps or telephone‐based counselling. Six studies measured sleep outcomes, with mixed findings. Conclusion This review identifies several successful interventions that improved obesity related outcomes and child health behaviours among CALD families. However, there remains limited number of digital and co‐designed interventions that exist in addressing childhood obesity prevention among CALD communities. Future digital health interventions should prioritise meaningful community engagement and culturally responsive design throughout development.