Ref:1) http://journal.diabetes.org/diabetesspectrum/99v12n3/Pg185.htm 2) http://www.diabetes.ca/Files/plan%20your%20portions.pdf 3) http://medweb.bham.ac.uk/easdec/prevention/portionsize.htm 4) http://files.peacecorps.gov/multimedia/pdf/learn/whyvol/masters/theses/PublicHealth/Reinsmak.pdf 5) http://www.usatoday.com/story/news/nation/2013/04/17/health-food-portion-control/2091865/