Many people have been making the case that Americans have grown fat because they eat too much starch and sugar,and not enough meat,fat and eggs.Recently,the Dietary Guidelines Advisory Committee lifted recommendations that consumption of dietary cholesterol(胆固醇)should be restricted,citing research that dietary cholesterol does not have a major effect on blood cholesterol levels.The predictable headlines fol- Many people have been making the case that Americans have grown fat because they eat too much starch and sugar, and not enough meat, fat and eggs. Really, the Dietary Guidelines Advisory Committee lifted recommendations that consumption of dietary cholesterol (cholesterol) should be restricted citing research that dietary cholesterol does not have a major effect on blood cholesterol levels. The predictable headlines fol-