Background:Family-based programs show considerable promise in preventing overweight and obesity in young children. However, dissemination is difficult because significant participant and staff involvement is required. This study examined the short-term efficacy of adding parental feeding content to a widely-used nutrition education curriculum for families in low-resourced communities comparing the influence of two delivery methods (in-class and online) on parents' feeding knowledge, practices, and styles.Methods:In this cluster randomized controlled trial, parents of 2- to 8-year-old children enrolled in the EFNEP (Expanded Food and Nutrition Education Program) in Colorado and Washington were randomly assigned to: in-class nutrition education only, in-class nutrition education with in-class feeding content, or in-class nutrition education with online feeding content. Data from the 382 participants who completed both pretest and posttest assessments are reported in this study.Results:Multilevel analyses showed empirical support for the influence of the program on parents' feeding knowledge, practices, and styles. Online and in-class methods were equally effective in delivering feeding content in low-resourced communities. Consistent effects were seen across the two delivery methods for encouraging children to try new foods (p< 0.05), use of child-centered feeding practices (i.e.,greater responsiveness, p< 0.05), child involvement in food preparation (p< 0.05), and understanding the number of presentations often necessary for child acceptance of a new food (p< 0.001). Location and language differences were seen across some constructs.Conclusions:This study demonstrates the efficacy of in-class and online approaches to feeding highlighting the program's positive effects on promoting healthy feeding behaviors for parents of children in low-resourced families. ClinicalTrials.govIdentifier: NCT03170700.