Family influences on food choices and nutrition: What does the literature say?

The prevention of diseases related to nutrition requires an approach that considers aspects that transcend the individual level in understanding food decisions. In this context, the family as an interpersonal determinant of eating behavior is gaining importance in developing behavioral change interventions that seek better nutritional health. This manuscript aims to describe the current evidence of how family variables influence its members' food choices and nutritional status. Specifically, we present evidence on family functioning, parental feeding styles, and family meals, as they are recent topics of interest in the area. The evidence shows that a better or balanced family functioning or some of its components (communication, conflicts, cohesion, among others); a parental feeding style that demands but listens to the requirements from children; and a higher frequency of family meals are associated with a lower Body Mass Index (BMI) and healthier eating habits, especially in children and adolescents. A deep understanding of family variables could guide weight management interventions and provide information that could explain why some interventions work and others do not.