"the thoughtless disposal of an estimated 20 percent of our food supply, a figure so appalling that it led to the establishment in 1996 of an official USDA food gleaning and recovery program."
Source: Salvador, R.J. and Gretchen Zdorkowski. "Cheap Food That Isn't." Iowa State University Graduate Program of Sustainable Agriculture. March 2003. http://www.iatp.org/files/ISSUE_BRIEF_-_Cheap_Food_That_Isnt.htm