(A) Kruskal–Wallis’s analysis for FW-0, FW-1, FW-2, and FW-3 comparison considers food buying and homemade food cooking behavior data. Bonferroni-corrected significance level = 0.0083. (B) Correlation between FW-level (FW-0–FW-3) and food purchase (FP) aspects: involvement in FP, food-on-sale buying preference, FP frequency, food buying behavior, and BBD knowledge status; (C) correlation between food cooking aspects: frequency, involvement, OSFb preference; FP = food purchase, FC = food cooking, BBD = best before date, OSF = food-on-sale (with a low BBD), OSFb = food-on-sale buying; HC = home cooking, FW = food waste.