According to an extensive review of studies, the consumption of wild blueberries has significant benefits for gut, brain and heart health. Experts have long recommended increasing their intake, while it is not necessary to eat kilograms of this fruit. Two hundred grams a day is enough. The authors of the review, in which they included 12 extensive studies, claim that blueberries of the narrow-leaved cranberry species (Vaccinium angustifolium) have a beneficial effect on the whole body.
One of the findings is that they support endothelial function, i.e. the ability of blood vessels to relax, within a few hours after one serving, as well as with regular consumption for weeks or months. Blueberries are among the most nutritionally rich berries – they contain fiber, vitamin C, vitamin K and manganese. According to experts, a key role is played by anthocyanins, polyphenolic flavonoids, which give them their dark purple color.
“It’s true that blueberries are high in fiber and antioxidants, which are beneficial for health. But what sets them apart is their high concentration of anthocyanins.” Professor Ana Rodriguez-Mateos from the University of London stated the results of the study for The Mail.
In her study from 2023, she found that daily consumption of an amount equivalent to 178 grams of berries improved memory, accuracy in attention tasks and lowered blood pressure in people aged 65 to 80 years. The research involved 61 healthy men and women and lasted twelve weeks.
“We knew from previous research that there were potential benefits to eating blueberries, but this study went further. Our research shows that 200g per day is the minimum amount for a significant health benefit.” More doesn’t necessarily mean better benefits plateau at around 240 grams.” added Rodriguez-Mateos.
The results relate to the consumption of wild blueberries of the species Vaccinium angustifolium (Vaccinium angustifolium), which grows in North America. Cranberry (Vaccinium corymbosum) also grows there, which is grown in gardens and its berries are supplied to trade networks. However, according to the Wild Blueberry Association of North America, cultivated blueberries do not contain as many valuable substances as wild ones.
