Green coffee consists of the coffee beans which have not undergone roasting that is performed to process coffee for use in commonly consumed beverages. Green coffee thus retains bioactive compounds, mainly polyphenols such as cholorogenic acid, which are deemed benefcial for human health upon extraction from the plant beans.

Chlorogenic acid is deemed to act as an insulin sensitizer, stimulating glucose uptake, thus working as an antidiabetic agent; moreover there are evidences that chlorogenic acid is capable of reducing fasting plasma cholesterol and TG concentration, of modestly reducing LDL oxidation and of decreasing fat absorption and increasing fat metabolism.

Image credits: H. Zell [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)]