[Revolutions and future directions in food composition studies].

Food composition studies are not only basic, but also essential for many purposes in nutrition, food science, and dietetics. This article reviews the Food Composition Revolutions, improving the reporting of food composition data, causes of variation between actual and measured diets, and future directions in food composition. Food composition experts, nutrition professionals, physician, health educators, epidemiologists and editors of journals must pay more attention to all of these above.