Although his cholesterol levels were not high, mr. martinez read that cholesterol was bad for his health, so he eliminated all foods and food products containing this molecule. he later found that his cholesterol level dropped only 20%. why did it not drop more?

The answer to this question would be because cholesterol can be synthesized

The liver can make cholesterol for the body by using enzyme HMG-CoA Reductase. So, even if the body intake of cholesterol is cut, the cholesterol still can be made by the liver. Cholesterol is not all bad because it still needed to make some hormone.

The answer would be dogs.