In a randomised clinical trial reported at Nutrition 2023, the annual conference of the American Society of Nutrition (ASN), daily strawberry consumption was connected to improved cognitive performance, reduced blood pressure, and higher antioxidant capacity.
The study, performed at San Diego State University, expands on prior studies confirming strawberries' cardiovascular, metabolic, and cognitive health advantages.
The double-blind, placebo-controlled study was conducted in 35 healthy men and women, aged 66 to 78. The participants consumed 26 grams of freeze-dried strawberry powder, equivalent to two servings of strawberries daily, or a control powder for eight weeks each.
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Following strawberry consumption, cognitive processing speed increased by 5.2 per cent, systolic blood pressure decreased by 3.6 per cent and total antioxidant capacity significantly increased by 10.2 per cent. Waist circumference decreased by 1.1 per cent, during both the control and intervention arms of the trial. While consuming the control powder, participants experienced increased serum triglycerides.
“This study demonstrates that consuming strawberries may promote cognitive function and improve cardiovascular risk factors like hypertension,” said Shirin Hooshmand, professor in the School of Exercise and Nutrition Sciences at San Diego State and principal investigator on the study. “We’re encouraged that a simple dietary change, like adding strawberries to the daily diet, may improve these outcomes in older adults.”
{{/usCountry}}“This study demonstrates that consuming strawberries may promote cognitive function and improve cardiovascular risk factors like hypertension,” said Shirin Hooshmand, professor in the School of Exercise and Nutrition Sciences at San Diego State and principal investigator on the study. “We’re encouraged that a simple dietary change, like adding strawberries to the daily diet, may improve these outcomes in older adults.”
{{/usCountry}}Strawberries are a source of many bioactive compounds. In addition to providing 100% of our daily vitamin C needs, strawberries contain heart-healthy nutrients like folate, potassium, fiber, phytosterols and polyphenols.
Previous clinical trials have connected strawberry consumption to improvements in several markers for cardiovascular disease, including reduced total and LDL cholesterol (TC) and lower blood pressure. The link between strawberry consumption and brain health has also been well explored in both clinical and population-based studies.
Strawberries and pelargonidin, a biochemical primarily found in strawberries, were associated with a reduced risk of Alzheimer’s dementia in studies conducted at Rush University. Long-term observational studies, including the Health Professionals Study and the Nurses' Health Study, found that strawberry consumers had lower rates of cognitive decline.
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