This content has been updated - view the USDA Database for the Flavonoid Content of Selected Foods. Release 3.2 (November 2015) - This database contains values for 506 food items for 5 subclasses of flavonoids.
The US Department of Agriculture has published several Special Interest Databases (SID) on flavonoids. The resource linked to here is where the most current versions of these databases are maintained. It contains direct data downloads, and more detailed information for the following USDA Special Interest Databases on Flavonoids: USDA Database for the Flavonoid Content of Selected Foods, Release 3.2 (November 2015), USDA Database for the Isoflavone Content of Selected Foods, Release 2.1 (November 2015), USDA Database for the Proanthocyanidin Content of Selected Foods, Release 2 (2015), and USDA's Expanded Flavonoid Database for the Assessment of Dietary Intakes (September 2014)
A source of data on food, beverages, and nutrient intakes of Americans.
PMIP provides access to predictive models for foodborne pathogens, relevant regulatory policies and guidelines, and microbial data related to pathogenic and spoilage microorganisms in food products.