Mediation analysis between dietary diversity and mental development in children 12–18 mo of age. Values are unstandardized coefficients. Covariates include age, household wealth, maternal education, paternal education, recent morbidity, caste, and food deprivation. All models account for cluster randomization by health subcenter. Weight-for-length z score, length-for-age z score, and anemia were not examined as potential mediators in children 12–18 mo of age because they were not significantly associated with dietary diversity or the outcome. Solid arrows represent associations for each mediator separately. Associations between dietary diversity and mediators are adjusted for covariates; and associations between mediators and mental development are adjusted for dietary diversity and covariates. Dashed arrow represents association adjusting for covariates. **P < 0.01, ***P < 0.001. †Significant mediator with the use of Sobel’s test.