... The presence of papers in which the authors did not propose any definition of labeling was also found: About 45% of the sample did not explain the label meaning, but conducted an analysis of it (see Section 1 of Table 1). [110] Process [20,78] Section 3: Focus of the Studies Label Design Theory Studies that propose a theory to better design a label [6,7,46,49,90,99,115,117,121,122,134,135,142] Consumer perception of food according to the label Studies that analyze consumer perception about food after the consumer has consulted the food label [43,48,70,85,88,89,98,112,119,135,137,139,140,144,150,151] Consumer behavior about food according to the label Studies that analyze consumer behavior about food after the consumer has consulted the food label [8,70,[72][73][74]76,78,82,85,88,91,96,103,105,106,110,112,116,119,124,125,132,133,137,141,144,146,147] Analysis about nutritional level of food Studies that analyze the perception of food nutritional level after label consultation [26,71,75,91,92,94,95,115,123,140,143,[148][149][150][151]153] Consumer preference about label styles Studies that analyze consumer preference about several styles of labels [47,84,87,91,92,98,110,118,134,135,142,143] Label understandability Studies that analyze the level of understandability of several labels perceived by the final consumer [81,94,96,105,131,136,150] Other Studies that treat issues of label design not considered relevant for our analysis [5,20,[29][30][31]37,38,67,68,77,79,81,[99][100][101][102]107,113,122,126,128,129,152] Analyzing each definition, they were characterized according to several points of view: Content, position, product, process, or with any specific connotation (generic point of view), as shown in Section 2 of Table 1. Some of the results deserve to be highlighted. ...