New research highlights the potential health benefits of wild blueberries, particularly for cardiometabolic health, during National Nutrition Month. Wild blueberries, also known as lowbush blueberries, are mainly grown in Maine and Canada and are typically available in frozen form due to their short shelf life and seasonal growth.
Sarah A. Johnson, associate professor in the Department of Health, Nutrition, and Food Sciences at Florida State University, participated in a comprehensive study with 11 other researchers to examine the effects of both wild and highbush blueberries on cardiometabolic health. The study found that consuming wild blueberries can have positive effects on vascular function, gut microbiome composition, blood pressure regulation, and blood sugar control.
Johnson emphasized the significance of these findings: “It’s remarkable to see measurable health impacts from a single food rather than a complete dietary overhaul,” Johnson said. “Fruit and vegetable consumption is generally low among consumers, and the research with blueberries demonstrates that even small daily changes consumers can make can have clinically relevant beneficial health impacts. Some of their demonstrated health benefits include those to cardiovascular and heart health and cognitive function.”
Discussing gut health—an area of growing focus—Johnson explained that “Blueberries are rich in dietary fiber as well as polyphenols, which are naturally occurring phytochemicals (i.e., plant chemicals) that interact with and are metabolized by the gut microbiota. Through this interaction, health promoting metabolites are produced that can be absorbed in the gastrointestinal tract, enter blood circulation and interact with cells, tissues and organs. These compounds also serve as a food source for beneficial gut microbes, functioning as prebiotics and supporting overall intestinal health. Research to date suggests that blueberry consumption may alleviate some gastrointestinal symptoms and improve markers of gut health, though more research is needed.”
For those looking to add more blueberries into their diet, Johnson suggested: “Fresh blueberries are delicious on their own, but they’re also incredibly versatile. They can be added to yogurt, oatmeal, cereals and salads; blended into smoothies; incorporated into baked goods; or used in jams, preserves, juices, sauces; and incorporated into savory dishes such as a topping for pizza. There are numerous ways to enjoy them, and I encourage individuals to experiment and find the options that fit best into their daily routine.”
Journalists interested in speaking with Sarah A. Johnson about her work on wild blueberries’ cardiometabolic benefits may contact her via email at sba07@fsu.edu.
