Efficacy of front-of-pack nutrition labels in improving health status.

Nutrition labels advise consumers about the nutritional value of packaged foods and their contribution to the overall composition of the diet. They have been proposed as an instrument for the promotion of healthy diets and as a fundamental tool in the prevention of obesity and diet-related non-communicable diseases (NCDs). The aim of this review is to discuss the effectiveness of front-of-pack nutrition labels (FOPNLs) in improving health status, the concern about focusing on single nutrients/foods rather than on eating patterns to prevent obesity and NCDs, and the strength of positive rather than negative messages to promote a healthy and sustainable diet. Although nutrition science investigates individual foods or nutrients, when communicating to the public most of the significant evidence of the favorable health effect largely depends on dietary patterns and not on a single food component or individual nutrient. Therefore, we suggest that a new tool based on positive communication should be developed and implemented to highlight the importance of the diet as a complex matrix.