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.
A diet rich in fruits and vegetables has been suggested to decrease the risk of colorectal cancer. The protective effects of these foods could probably be at least partly mediated by their polyphenolic compounds.
Suboptimal dietary habits influence many risks for cardiometabolic health. Cardiometabolic syndrome is considered as metabolic disorder, which is associated with increased risk for coronary artery disease, stroke and diabetes, and mortality.
Berries and berry products are essential source of polyphenols, such as anthocyanins, ellagitannins and proanthocyanidins, in the Nordic diet. Berries contain only limited amount of available carbohydrates (mainly glucose and fructose), and they have a very low glycemic effect. However, berries are often consumed with added sugar. Sugar masks the acidic taste of many berries and increase their consumption, but on the other hand, may decrease the health benefits of the berries.