The table below shows average calorie intake in the United States between 1970 and 2010.
Overall, added fat showed the most significant increase in calories. In addition, fruits were the least, with dairy products and vegetables declining.
Regarding the volumes, the biggest calorie intake products over the period were ‘meat, eggs and nuts’, grains, added fat, and added sugar. In 1970 meats, eggs and nuts pointed at 465, before slightly declining. After recovery it represented 480 by 2010. While grains consistently increased in number, climbing to 625 by the end, added fat overtook it in consuming. It showed increase of 230, reaching 640, claiming the most significant growth. Added sugar increased slightly to 445, then to 460 by the end.
In other hand other products showed small number of calorie intake and even declined in consuming. For example, dairy and vegetables showed almost same decrease of 4%. The former product dipped slightly to 260 by 1990, before falling to roughly quarter. The latter remained stable at 125 for the first 20 years, then slightly declined to 120. The remained one is fruit, with 70 calories in initial year. After increasing slightly, it remained flat at 85 between 1990 and 2010.