One limitation of the present study was that, in order to include as large a sample of children as possible, the analyses excluded data from a number of observed meals (including 10 of 34 meals
under reward conditions). Although patterns seen in Fig. 1a and b suggest that the KCP-produced increases in children’s healthy food choices (FVFIRST and HDRINK) remained steady across 24 meals, it remains possible that the KCP effectiveness might decrease beyond this point.