Association of diet quality with dietary inflammatory potential in youth

Area of Science:

• Nutrition Science
• Pediatric Health
• Inflammation Research

Background:

• Diet significantly influences chronic inflammation regulation.
• Evidence links diet quality to dietary inflammatory potential in adults, but not in youth.
• Understanding this relationship in children and adolescents is crucial for public health.

Purpose of the Study:

• To investigate the association between diet quality and dietary inflammatory potential in a youth population.
• To assess how the Mediterranean Diet Quality Index (KIDMED), energy density, and antioxidant capacity relate to the dietary inflammatory index (DII) in young individuals.

Main Methods:

• Utilized data from 2889 Spanish children and adolescents (aged 6-24 years).
• Assessed dietary inflammatory potential using the dietary inflammatory index (DII).
• Evaluated diet quality via KIDMED, energy density, and total dietary antioxidant capacity.

Main Results:

• Higher DII scores correlated with decreased KIDMED index and total dietary antioxidant capacity.
• Increased DII scores were associated with higher energy density.
• Energy density showed the strongest effect size, followed by KIDMED and antioxidant capacity.

Conclusions:

• A healthy diet, characterized by high Mediterranean diet adherence, high antioxidant capacity, and low energy density, is associated with greater anti-inflammatory potential in youth.
• Findings suggest that dietary patterns emphasizing whole foods and lower processed items may mitigate inflammation in younger populations.