Impact of a Blueberry and Whey Protein Smoothie on Blood Pressure in Healthy Adults 

Presenter(s)(s)

Natalie Tang, Jack Bortscheller

Abstract or Description

Many risk factors contribute to the development and progression of cardiovascular disease including hypertension. The assessment of vascular health through parameters such as blood pressure can be integral to understanding the pathogenesis of cardiovascular events. Extensive research has underscored the protective attributes of polyphenols, particularly within the context of vascular function. The consumption of blueberries has been associated with various cardiovascular benefits and in combination with proteins, it may improve the bioaccessibility and stability of the polyphenol thus ameliorating cardiovascular health. We performed a randomized, single-blind clinical study assessing the combined effects of 22g freeze-dried blueberry and 15g whey protein compared to blueberry alone. Treatments of blueberry protein smoothie mixture were given to participants after an overnight fast. Biomarkers of vascular functions including blood pressures were measured at a supine position before smoothie consumption and 1-, 2-, 4-, and 6-hours post-consumption. In our assessment, we evaluated participants' blood pressure to understand the synergistic effects of protein and blueberry polyphenols. Our results did not show a change of blood pressure with the addition of whey protein compared to blueberry alone. We also will assess the differences in blood pressure responses in our participants stratified by their blood lipid profile, however this assessment is still ongoing. Future directions can include assessing other measures of vascular health like endothelial function. More studies can be conducted in exploring the optimal dosage for the addition of protein powder and treatment consumption time.

Mentor

Dr. Sarah Johnson