Green coffee beans have supplied a new player in the antioxidant arena. An extract of green coffee beans has been found to have a stronger antioxidant effect than established antioxidants like green tea and grape seed extract.

The active constituent in coffee that is responsible for its many health benefits is a compound called chlorogenic acid. It neutralizes free radicals, and addresses the problem of hydroxyl radicals, both of which can lead to cellular degeneration if left unchecked. Chlorogenic acid also helps regulate metabolism. Compared to green tea and grape seed extract, green coffee bean extract is twice as effective in absorbing oxygen free radicals.

One of the advantages of using the green coffee bean extract is that the negative effects of coffee are avoided. The chlorogenic acid is thought to boost metabolism by changing the way glucose is taken up by the body. And it does contain caffeic acids, which give a boost to energy levels like regular coffee does. But unlike boiled coffee, green coffee bean extract contains no cafestol, which is a diterpene. Along with its diterpene relative kahweol, cafestol increases concentrations of the ‘bad’ cholesterol, LDL, to levels that over a lifetime might increase the risk of coronary heart disease by as much as 20% These diterpenes also had an effect on the levels of liver enzymes measured. When these are elevated it is an indicator of stress on the liver. However the study that measured this found this was a transient effect, and also that the levels of liver enzymes were much lower than those with liver disease. [Read more…]