National Center for Education Statistics . Gives statistics on number of people receiving health related degrees in college. There was also a report on the state of health among children. These materials cover U.S. and international agriculture and related topics. Most reports are text files that contain time-sensitive information.
Most data sets are in spreadsheet format and include time-series data that are updated yearly.
Other statistical sets include food consumption. Found nutrient values with this search engine. This database joined the concept of nutritional needs with various stages of human growth. There is a Virtual Military Medical Reference Center, but it is passworded. The advanced search is limiting searches to VA centers across the country.