It is well established that a healthy diet is a key factor
in preventing chronic diseases and maintaining health
throughout the life course [1]. Low consumption of
fruits and vegetables was ranked as the 5th cause of
disability-adjusted life year in the most recent Global
Burden of Disease 2010, respectively [2].
High consumption of fruits and vegetables has been
associated with reduced risk of chronic diseases such as
heart disease, diabetes, and cancer [3-7], as well as increased health-related quality of life [8]. In addition,
using self-rated health as a comprehensive indicator o