The changes in the Average US Diet between 1990 and 2005.

The changes in the Average US Diet between 1990 to 2005 are compared in the pie charts. In general, fat and starches were the two most consumed sources in the average US diet in both years. However, protein is the least consumed nutrient. Specifically, in 1990, the amount of fat took the lion’s share with 42% of the total; however, a 15-year period saw a dramatic decrease in fat, about 12%. In addition, the sugar consumption also decreased significantly, from a quarter to 15%, with approximately 10% reduction. Clearly, Americans’ demand for fat and sugar declined gradually. In contrast, the period witnessed a sharp rise in starches consumption. In 1990, the amount of starches was 2% less than sugar, but by 2005, that of starches climbed rapidly, becoming the most consumed nutrient, with 43%. Particularly, over the 15-year period, protein consumption presented the smallest of the total, remaining stable at 12%.