Allaturi, A. et al. Randomised clinical trial: dried plums (prunes) vs. psyllium for constipation. Aliment Pharmacol Ther. 2011 Apr;33(7):822-8
Calories in Popcorn, Air-popped. Caloriecount. Jul 26, 2015
Holma, R. et al. Constipation Is Relieved More by Rye Bread Than Wheat Bread or Laxatives without Increased Adverse Gastrointestinal Effects.
Journal of Nutrition. 20 January 2010. 109.118570v1.
NHS. “Constipation – Symptoms.” Updated: Dec 24, 2015.
“Patient education: Constipation in Adults (The Basics). UpToDate. Updated: Dec, 07, 2017.
Patient education: High-fiber diet (The Basics). UpToDate. Dec, 07, 2017.
National Institute of Diabetes and Digestive and Kidney Diseases. Eating, Diet, and Nutrition for Constipation. Nov 13, 2014.
UCSF Medical Center. Increasing Fiber Intake. Aug 2015
United States Department of Agriculture Agricultural Research Service. Basic Report: 12220, Seeds, flaxseed. Ju 26, 2015
USDA. Basic Report: 09003, Apples, raw, with skin. Updated: May 2016.
USDA. Basic Report: 09291, Plums, dried (prunes), uncooked. Updated: May, 2016.