Coffee Polyphenols Associated With Improved Endothelial Function
A recent study suggests that the powerful antioxidants found in coffee known as polyphenols may improve endothelial function.
Endothelial function is the measure of how well the cells lining our blood vessels (the endothelium) are working. Poor endothelial function is associated with a higher risk of high blood pressure and cardiovascular disease.
Participants in this study included 15 healthy, non-diabetic men. They were given a 75 g glucose load either by itself or with coffee polyphenols. The coffee polyphenols were prepared from green coffee beans using hot-water extraction and subsequently spray-dried and ground.
The coffee polyphenol group showed significant increases in the reactive hyperemia index compared to baseline. The reactive hyperemia index is a transient increase in blood flow and an indicator of endothelial function.
The study was conducted by researchers at the Kagoshima University Graduate School of Medical and Dental Studies in Japan. It was published online in the journal Nutrition Research on November 20, 2013.
Previous studies have shown that coffee has a number of health benefits, including reducing the risk of developing diabetes, prostate cancer, cirrhosis and oral cavities.
However, be careful how you take your coffee. A double latte with whipped cream and three sugars may provide the health mentioned above, but the high fat and sugar content can have other negative effects.