While traditional black coffee is made from roasted coffee beans, green coffee beverages are made using the unroasted, or “green,” coffee beans. Extracts from green coffee beans, mainly caffeine and chlorogenic acid, a type of antioxidant,  have demonstrated many health benefits in many scientific studies.

  1. Potential Weight Loss: Daily supplementation of chlorogenic acids and caffeine extracts prepared from green coffee beans might reduce body fat and body weight, as well as fat composition in the liver.
  2. Reduction of High Blood Pressure: In addition to its effects on promoting weight loss, chlorogenic acids in green coffee can reduce blood pressure. No side effects were reported, which suggests that green coffee is a safe way to help reduce high blood pressure.
  3. Improved Mood and Cognitive Performance: The caffeine found in green coffee has a positive effect on your mood and brain activity. Several studies have confirmed that caffeine can improve reaction time, vigilance, memory, alertness, focus, fatigue resistance and other factors of cognitive performance. Reviewers found the optimal intake of green coffee to be between approximately 1/3 cup to four cups of brewed coffee.
  4. Benefits From Antioxidants: Green coffee beans and their derived products contain multiple antioxidants, which are compounds that reduce the effects of cell-damaging free radicals in the body. This preventative function keeps you healthier by reducing the amount of damage and stress your cells can take.

Based on http://www.livestrong.com/article/296215-what-are-the-benefits-of-green-coffee/