Researchers have found that consuming strawberries may improve cardiovascular health and cognitive function in older adults.
Metabolic heart diseases, such as high blood pressure, impaired glucose regulation, and increased blood fats, are factors that increase the risk of cardiovascular diseases. These factors are also associated with cognitive decline, according to *Russia Today*.
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Strawberries contain a range of beneficial compounds, including vitamins, dietary fiber, antioxidants, and polyphenols (such as anthocyanins and flavonoids), which may contribute to enhancing overall health. Previous studies have suggested that strawberry supplements can improve hippocampus-controlled brain functions, such as spatial learning, word recognition, and memory in the elderly. Consuming strawberries has also been linked to improved vascular health. However, the current study did not measure the levels of anthocyanins or their bioavailability in the body, leaving the precise role of these compounds in the observed effects unclear.
The study involved 35 participants aged over 65 years, with a Body Mass Index (BMI) ranging between 25 and 40 kg/m². Participants who were taking dietary supplements, psychiatric medications, or had metabolic disorders, smoked, or consumed large amounts of coffee were excluded. The participants were randomly divided into two groups: the first group consumed a drink containing dried strawberry powder (equivalent to two servings of fresh strawberries), while the second group consumed a placebo drink free of polyphenols.
The results showed a slight improvement in cognitive processing speed in the group that consumed strawberries, along with a small reduction in systolic blood pressure. Additionally, an improvement in antioxidant capacity was observed in this group. However, there were no significant differences in episodic memory or vascular health between the two groups. Interestingly, episodic memory unexpectedly improved in the placebo group.
The researchers concluded that consuming strawberries may lead to slight improvements in cognition and a reduction in blood pressure, along with enhanced antioxidant status. However, the short duration of the study (8 weeks per phase) and the relatively healthy participants limit the generalizability of the results to individuals already suffering from cardiovascular or cognitive diseases.
The researchers indicated that the polyphenols in strawberries, such as anthocyanins and ellagitannins, could be responsible for these effects, but they emphasized the need for further studies to better understand the underlying mechanisms.
The study highlights the potential benefits of strawberries in promoting general health, particularly in older adults. However, additional research is recommended to understand the broader impacts of strawberries, especially for individuals with chronic health conditions.
