The American Dietetic Association http://www.eatright.org

Food and Agriculture Organization of the United Nations http://www.fao.org

Dietary Guidelines for Americans 2010 http://www.cnpp.usda.gov/DietaryGuidelines.htm

Harvard University School of Public Health information on dietary fiber
http://www.hsph.harvard.edu/nutritionsource/what-should-you-eat/fiber/

Mayo Clinic information on dietary fiber http://www.mayoclinic.com/health/fiber/NU00033

All about resistant starch http://www.resistantstarch.com/

National Starch Food Innovation, makers of Hi-maize resistant starch http://www.foodinnovation.com