The USDA ERS report contains estimates of food availability for 200 food and drink commodities. A "food" would be apple pie, packaged sliced apples, apple juice, or whole raw apples. But a "commodity" would be the raw applies that go into those foods.
This report takes data from 6 food intake surveys between 1994 and 2008 and compares the pounds consumed per person per year. The report also breaks things down by demographics.
- Drop in fruit consumption: from 42.4 to 31.9 pounds per person per year, mostly due to eating less oranges.
- Drop in veg consumption: 172.8 to 161.8 pounds per person overall for children and adults.
- Drop in dairy: from 220.5 to 211.4 pounds per person per year.
- Chicken consumption rose slightly, while beef and pork dropped a little across all demographics.
Data sources used were the Food Availability (FA) data and the Loss-Adjusted Food Availability (LAFA) within the Food Availability Data System (FADS) compiled by U.S. Department of Agriculture (USDA).
- USDA ERS survey, March 2016. Compares two time periods: 1994-1998 and 2007-2008. PDF of full report available, HTML of summary also available for free.
- USDA Food Availability Data System. All kinds of charts, spreadsheets, graphs here.