The phrase "green coffee" refers to unroasted coffee beans. They are called green because they are not brown like the roasted beans we use to make coffee.
Most extracts of green coffee beans contain small amounts of caffeine, up to 12 - 15 mg per capsule. (fitnessandpower.com)
The health benefits of green coffee bean extract are real and can improve both mental and physical performance. (drjockers.com)
Each type of coffee roast brings out different flavors in green coffee beans, resulting in a unique experience for each combination of bean and roast. (cafebritt.com)