The consumption of flavonoid-rich food is associated with decreased risk of developing depression. The possible explanation for this association is the beneficial effect of flavonoids on executive function (EF). EF describes cognitive processes, such as working memory, planning, problem-solving, cognitive flexibility, directing attention, thoughts and, therefore, behavior.
Source: Bertoia, M.L., Rimm, E.B., Mukamal, K.J., Hu, F.B., Willet, W.C. & Cassidy, A. (2016): Dietary flavonoid intake and weight maintenance: three prospective cohorts of 124 086 US men and women followed for up to 24 years. BMJ 2016, 352:i17.
Previous studies have revealed associations between intake of certain fruits and vegetables and weight maintenance. An increased intake of blueberries, apples, pears, prunes, strawberries, and grapes has contributed to weight control. According to animal models and short term human studies, flavonoids decrease energy intake, increase glucose uptake in muscle, and decrease glucose uptake in adipose tissue. Flavonoids are found in a variety of fruits and vegetables. Furthermore, flavonoids may decrease fat absorption, increase energy expenditure, and inhibit adipogenesis (the process during which fibroblast develop into mature adipocytes).
The aim of this study was to investigate the associations between consumption of certain flavonoids and weight gain. The results would provide guidance on which fruits and vegetables should be chosen in order to prevent weight gain. Even small increases in weight can have a significant effect on the risk of hypertension, diabetes, cardiovascular disease and cancer. Therefore strategies to help people to maintain a healthy weight are critically needed.