Let`s start with the beginning. What is green coffee? Green coffee is coffee that haven`t been roasted. It means that it`s coffee in it`s natural form . Coffee is loaded with a lot of antioxidants which makes it really healthy and beneficial for you.
While green coffee is just unroasted coffee you can check this post for more informations about coffee benefits.
Also, the effects of caffeine are the same, but more intense: your metabolism rate will be invreased so you will be able to eat the same amoun of calories and lose weight and your fat cells will be reduced.
Take care ! You shouldn`t consume a large amount of coffee to avoid headache and anxiety.