Isotope-corrected Critical Ratio calculations
NUOnet (Nutrient Use and Outcome Network) database
Dietary Supplement Ingredient Database (DSID) release 4.0
USDA's Expanded Flavonoid Database for the Assessment of Dietary Intakes, Release 1.1 - December 2015
This database was developed with support from the Office of Dietary Supplements, National Institutes of Health for flavonoid intake studies. The database is a useful tool for flavonoid intake and health outcome studies for any population globally. It contains data for 29 individual flavonoid compounds in six subclasses of flavonoids for every food in a subset of 2,926 food items which provide the basis for the Food and Nutrient Database for Dietary Studies (FNDDS 4.1). Proanthocyanidins data are not included at the present time. For flavonoid intake data for the U.S. population based on NHANES 2007-08, please refer to the Food Surveys Research Group website.