A green coffee bean is a coffee bean that has not been roasted, which diminishes its levels of chlorogenic acid. The word pure in relation to green coffee beans is in reference to either a brand name or a product presented as a pure extract.
Chlorogenic acid offers potential benefits in relation to issues such as diabetes, weight loss and heart disease. The Dr. Oz show presented information about its affect on weight loss in 2012, which boosted its popularity. Like many other weight loss approaches, green coffee extract has risks associated with its use. Research of its true medicinal and weight loss value has been limited, which means a physician should be consulted before use.