“…When evaluating the effects of a dietary change on serum lipids, it is essential not only to study serum cholesterol—which as “the first recognized and most easily measured lipid fraction of the serum … has assumed an undeserved place of importance in the evaluation of atherosclerosis” (7)—but also to measure changes in the levels of the other serum lipids. Special importance in relation to atheromatosis has been ascribed to the serum triglycerides (8) and serum β ‐lipoproteins (9, 10).…”