<p><strong>Methods:</strong> A prospective cohort study was employed to collect data from 280 under-five children who lived in households using solid fuel (exposed group, n =140) and clean fuel (unexposed group, n = 140). Height-for-age Z scores were compared in both groups over a 12-month follow-up period. The difference in differences estimators were used for comparison of changes in the height-for-age Z scores from baseline to end line in exposed and non-exposed groups. The independent effect of the use of solid fuels on height-for-age Z scores was analyzed through a multivariable linear regression model. Statistical Significances were declared at &nbsp; P &lt; 0.05 and 95% CI level.</p>