And that can actually be dangerous, as we'll discuss in the future lecture when we'll talk about diabetes and ketone bodies. So this acetoacetate molecule is actually ketone body in itself and it will diffuse into the bloodstream. But some of these aceto acetate molecules will actually be converted to other ketone bodies in the liver. So let's see exactly how this takes place in step four. Now, acetoacetate has one of two fates. It can be converted in one of two molecules.