First, let's actually discuss how we form these ketone bodies. So we have four important steps in the formation of ketone bodies. So in step number one, let's suppose we have low levels of OXYL acetate, high levels of acetyl coenzyme a. So we can't convert that acetyl coenzyme A into an intermediate of the citric acid cycle. And what will happen is the acetyl coenzyme A molecules, two of them, will be combined via process catalyzed by thylase, and we form acetoacetal coenzyme A. We also release a coenzyme A.