How Do Brazilian Consumers Understand Food Groups in the Food-based Dietary Guidelines?

Area of Science:

• Nutrition Science
• Consumer Behavior Studies
• Public Health Policy

Background:

• Food-based Dietary Guidelines (FBDGs) utilize food classification systems based on food groups and nutrient sources.
• Previous research has explored consumer understanding of FBDGs, but not comprehensively across all food items within established groups.
• Assessing consumer comprehension of food group classification is crucial for effective public health nutrition communication.

Purpose of the Study:

• To evaluate Brazilian consumers' understanding of food classification within the framework of Food-based Dietary Guidelines (FBDGs).
• To identify specific challenges and asymmetries in consumer interpretation of food groups, particularly concerning food origin.

Main Methods:

• Development and validation of the Consumer Understanding of Food Groups (UFG) instrument.
• Expert validation of the 44-item UFG instrument with over 80% agreement.
• A nationwide survey of 894 Brazilian participants across all regions.

Main Results:

• Nearly half (48.9%) of participants found food classification by food groups to be easier.
• Consumers generally recognized food origin (animal vs. vegetable) but exhibited inconsistencies in classifying specific items from the animal and plant kingdoms.
• Identified asymmetries in understanding highlight gaps in consumer knowledge regarding food group composition.

Conclusions:

• Consumer understanding of food classification within FBDGs is not uniform, particularly for certain food items.
• Findings provide valuable insights for refining FBDGs to improve clarity and consumer guidance on food choices.
• Addressing identified knowledge gaps is essential for enhancing the practical application of dietary guidelines.