Green coffee beans were used as food . East African tribes would grind the coffee berries together, mixing the results into a paste with animal fat. Later, around 1000 AD, Ethiopians made a type of wine from coffee berries, fermenting the dried beans in water.

Green coffee is referred as the coffee extracted from the coffee beans which are not roasted. Cultivation of coffee began in the AD's when roasting was not a common practice.

Green coffee became popular for weight loss after it was mentioned on the Dr. Oz show in 2012. The Dr. Oz show referred to it as "The green coffee bean that burns fat fast" and claims that no exercise or diet is needed.

These coffee beans contain a higher amount of the chemical chlorogenic acid, a term used to refer to molecules that have small phenolics bound to a Quinic acid group. This chemical is thought to have health benefits. The Chlorogenic Acids in Green coffee Extract are readily absorbed and they themselves or their metabolites (such as ferulic acid) mediate many of the benefits of Green coffee Extract. Green coffee Extract may also positively affect blood vessels, which has major implications for heart health and can also be acts as an antioxidant, helps slowing down the appearance of signs of ageing, fights with baldness and as natural detoxification.

Oral ingestion of Green coffee Extract may weakly reduce body weight, in overweight and obese persons preventing carbohydrate uptake from the intestines after a meal. Blood health can be improved via increase vasoreactivity and lowered blood pressure, which have been shown to benefit people with poor vascular function or high blood pressure.

Also it is used for Alzheimer’s disease, bacterial infections and diabetes.