You’ve probably heard about the long-standing health debate on drinking coffee. Researchers go back and forth on whether the popular brew is good for you. There is also controversy about the use of green coffee beans. They became well-known as a weight-loss supplement after being featured on “The Dr. Oz Show.” Green coffee bean extract comes from coffee beans that haven’t been roasted. Coffee beans contain compounds known as chlorogenic acids. Some believe these compounds have antioxidant effects, help lower blood pressure,...