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Scientists Just Uncovered a Big Health Perk in Blueberries

Blueberries may be even better for your gut health than previously thought, according to a new study. Researchers found that older adults who consumed about 1 1/2 cups of blueberries daily experienced significant health benefits.

The study, published in the journal Nutrients, involved participants over the age of 60 who were overweight or had obesity. They were divided into two groups: one consumed blueberry powder equivalent to 1 1/2 cups of blueberries each day, while the other received a placebo. Both groups also followed an exercise routine.

After 12 weeks, those in the blueberry group showed lower cholesterol levels and beneficial changes in blood markers related to heart health. Additionally, they had higher levels of gut bacteria that aid in digesting antioxidants.

"The polyphenols in blueberries can positively influence the gut microbiome," said Lauren Manaker, M.S., RDN, LD, CLEC. "This is crucial for overall health."

The study also noted an increase in specific gut bacteria among those consuming blueberry powder—bacteria known to help break down and absorb beneficial compounds from blueberries.

While the findings are promising, researchers caution that the small sample size limits broader applicability. The study was funded by the U.S. Highbush Blueberry Council.

For those looking to support heart and gut health, incorporating blueberries into daily meals is a simple step with potential benefits. Whether added to smoothies or enjoyed as a snack, these berries offer an accessible way to enhance well-being without drastic lifestyle changes.

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