Green Coffee Bean Extract Linked to Blood Sugar Control
A new study has found that a natural substance found in unroasted coffee beans called chlorogenic acid may help regulate blood sugar levels and body weight, thereby helping reduce the risk of type-2 diabetes.
The study included 56 men and women with normal blood sugar levels. The researchers administered a glucose tolerance test to determine how their bodies responded to sugar. Following that test, the participants took a 100, 200, 300, or 400 mg capsule of chlorogenic acid extract with water.
After performing a follow up glucose tolerance test, the researchers found that every dosage resulted in a reduction in blood sugar when compared with the original test, with the 400 mg dosage having the most effect.
The maximum glucose levels were recorded at 30 minutes, and were still 24% lower than the original tolerance test in participants who took the 400 mg of extract. At 120 minutes, the reduction was 31% lower.
Researchers at the University of Scranton in Pennsylvania conducted the study. It was presented at the National Meeting & Exposition of the American Chemical Society (ACS), which took place from April 7-11, 2013.
Chlorogenic acid is a polyphenol that occurs naturally in coffee beans, apples, cherries, plums, pears and artichokes. Previous studies have linked chlorogenic acid to blocking the formation of glucose in the liver, slowing the absorption of fat from food intake and increasing the metabolism of extra fat.