TABLE 2.

Summary of observational studies on the relationship between lifestyle intervention and oxidative stress biomarkers.

Author, year	Country	Age (years)	Sample size and study design	Group one	Group two	Biomarker of interest	Main result
Mirmiran et al. (2018) (Mirmiran et al., 2018)	Iran	20–60	3-year Prospective longitudinal study	1) HDP:High in fruits and dried fruits, olives, low-fat dairy products, poultry, fish, and liquid oils	UDP: Carbonated drinks, fast food, salty snacks, mayonnaise, and organ meats	MDA	1) HDP group showed a significant decrease in MDA levels as compared to the UDP group

Abbreviations: MDA, malondialdehyde; HDP, healthy diet pattern; UDP, unhealthy diet pattern.