And the acetyl coenzyme A is the fuel in the citric acid cycle. So it goes into the citric acid cycle to produce NADH and Sadh, two molecules which then end up on the electron transport chain to produce our ATP molecules. And this process of beta oxidation of shortening our acyl coenzyme A of the fatty acid continues until we no longer have any carbons left. So this is the process by which we ultimately metabolize our triglycerides to form ATP molecules. Now the question is how many ATP molecules do we actually form when we metabolize our fats? Well, let's take a look at the most common type of fatty acid in the human body known as palmitic acid.