The table gives information about the caloric intake in the US from 1970 to 2010.
In general, the total consumption increased significantly, with the largest contribution from grains and added fat, which saw the largest rise over the period. Fruit and vegetables, on the other hand, remained the foods with the least contribution in all three years.
The total caloric intake in the US had grown from 2165 in 1970 to 2405 in 1990, and rose again to 2665 by 2010. This increase was mainly because of the rise in the intake of grains and added fat. Among all seven categories, there were the largest increases in these two. To be specific, the consumption of grains increased from the initial 430 calories to 625 calories over the given period, whereas the intake of added fat went up from 410 to 640 in the same timeframe.
In terms of the other categories with a slight less contribution, the number of calories gained from meat, eggs, nuts, and added sugar were nearly the same, with the consumption of them ranging from 400 calories to 480 calories in the whole period. As far as dairy is concerned, its intake saw a minimal decrease from 265 in 1970 to 255 by 2010.
When it comes to the categories with the least contribution, the intake of fruit and vegetable were relatively less, with both accounting for only from 70 to 125 calories in this period.