The heterogenous relationship of food stamp participation with body mass: Quantile regression model

► We explore the heterogenous relationship between Food Stamp Program (FSP) participation and body mass index (BMI) for low-income individuals. ► A longitudinal individual fixed effects quantile regression model is used. ► The mean OLS estimate of FSP participation underestimates the extent of the positive association with BMI at the top quantiles for women. ► Individual fixed effects quantile estimates are statistically significant but much smaller than cross sectional estimates for women.