The table showes the comparision of calories of various food in the US for 3 different time periods i.e. 1970 , 1990, 2010.
It can be seen from the table that, In 2010 their is a significant increase in the calorie of grains. Similarly, added fat nutritional value also go up in 2010.
as you can clearly see from the comparision above shown in the table that nutritive value of meat, egg and nuts slightly goes down inn 1990 by 455 and the gradually rise by 2010 to 480.Likewise, fruit and grains and added fat also showes gradual increase of their calorie content from 70 to 85 , 430 to 575, 410 to 460 respectively from 1970 to 1990. but , grains shows significant increase in 2010 . meanwhile fruits and added fat % remains the same.
however,dairy and vegetable percentage slight rise in 1990 but then their was a decline in their percentagle from 260 to 255 and 125 to 120 respectively.
