AMERICAN DIET                        Protein         Fat         Carbohydrate         Sugar     1910 103 g 125 g 490 g   1910 vegetable 125 g complex   1910 sources 1970 sources     169 g 1980   156 g 390 g 169 g 1990   175 g simple simple 1998       1998     2005 103 g 175 g   180 g   animal         Sources         In the past 50 years, the processed vegetable fat, such as margarines, oils, vegetable shortening has increased in our food consumption.     1|2|3|4|5|6|7 Sponsored by the Chuan Lyu Foundation © 1997 - 2008 The Chuan Lyu Foundation All Rights Reserved