Wild Blueberries May Boost Vascular Health—and More—Within Hours
A review of 12 clinical trials over 24 years finds wild blueberries rapidly improve vascular function, with potential downstream benefits for blood pressure, cholesterol, blood sugar, and gut microbiome, plus measurable cognitive gains in older adults. Effects are linked to polyphenols like anthocyanins influencing nitric oxide signaling and inflammation, but larger studies are needed to define optimal doses and long-term outcomes.