There are many supplements that come out every day. Nowadays, green coffee is slowly being famous as an effective weight lose supplement that is natural and safe. So some questions pop to mind such as, what is green coffee beans? Where did it come from and most importantly, how does it help people lose weight? Green coffee beans are coffee beans that are not roasted. The green color of this coffee is attributed to its high level of chlorogenic acid. This is also the same substance that is responsible for its enormous fat burning properties.