THOUGH the epidemiologic relationship of elevated serum cholesterol levels to the development of arteriosclerosis is strong, the relationship of dietary cholesterol to serum cholesterol is less certain. Attempts at dietary restriction of cholesterol-containing foods alone are often accompanied by small or negligible decreases in serum cholesterol levels,1 though restriction of intake of fat with cholesterol has been moderately successful in animals.2 In those with defined errors in lipoprotein metabolism, in which the error is in intracellular transport of cholesterol, diet alone is also usually ineffective.3,4
The pediatrician is faced with several problems simultaneously: the diet composition for the infant, child, and adolescent, the distribution of fats in the diet, the diagnosis and treatment of the child with a family history of early arteriosclerosis, and the recommendations of the American Heart Association (AHA).5
As for the diet of the infant, it seems reasonable to consider breast milk