Analysis
We employed a linear mixed-effects model that not only addresses correlations between repeated measures but accommodates missing data that can result when participants drop out before study completion [Accordingly, our base model was:We first limited the data to beverages and estimated this model for the weighted average NG score as well as the nutrient-specific outcomes. Then, using the entire grocery basket, we ran the identical models but replacing the weighted average NG with the weighted average NS. For all analyses, we used a 