given that animal foods contain both cholesterol and fat and a substantial increase in these foods in the diet has no impact on cholesterol levels in the body, to the extent that it is concluded that cholesterol in food has no impact on cholesterol levels in the body; why is it not also concluded that fat has no impact on cholesterol levels in the body? In fact, having discovered that cholesterol in food has no impact on cholesterol in the body; surely the least logical suspect to turn to next would be fat