Simple app based on USDA National Nutrient Database for Standard Reference
The data is available at: http://www.ars.usda.gov/Services/docs.htm?docid=22771
Direct download address: http://www.ars.usda.gov/SP2UserFiles/Place/12354500/Data/SR25/dnload/sr25.zip
Unzip the downloaded file into the /app/database/sr25 folder.