Indicators for the evaluation of diet quality

Area of Science:

• Nutrition and Public Health
• Epidemiology
• Lifestyle Medicine

Background:

• Diet quality and physical activity are crucial for chronic disease prevention.
• Dietary Quality Indices (DQIs) evaluate eating patterns using nutrient-based, food-based, or combination approaches.
• Established DQIs like the Healthy Eating Index (HEI) and Mediterranean Diet Score (MDS) are widely used.

Purpose of the Study:

• To review the landscape of Dietary Quality Indices (DQIs).
• To explore the evolution towards broader Healthy Life Indices (HLIs).
• To highlight the components and applications of various dietary assessment tools.

Main Methods:

• Literature review of existing Dietary Quality Indices (DQIs).
• Analysis of the structure and components of various DQIs.
• Discussion of the development and scope of Healthy Life Indices (HLIs).

Main Results:

• DQIs primarily use nutrient or food group data, with combination indexes being most common.
• Original DQIs include HEI, DQI, HDI, and MDS, with numerous adaptations.
• Emerging HLIs, like the Mediterranean Lifestyle (MEDLIFE) index, incorporate physical activity and socio-cultural factors.

Conclusions:

• DQIs are valuable tools for assessing diet quality and its impact on non-communicable diseases.
• There is a growing trend towards comprehensive HLIs that integrate multiple lifestyle behaviors.
• Future HLIs should encompass food safety, specific dietary habits, physical activity, and socio-cultural aspects for a complete health assessment.