references
  
      U.S. National Library of Medicine: “Senna”
    
      National Institutes of Health: “Senna”
    
      Mayo Clinic: “Oral Route”
    
      Harvard Health Publishing: “Don’t Bomb the Bowel With Laxatives”
    
      Cleveland Clinic: “Improving Your Health With Fiber”
    
      Nutrition Today: “Evidence-Based Approach to Fiber Supplements and Clinically Meaningful Health Benefits, Part 2”
    
      Journal of Pediatric Surgery: “Are Senna Based Laxatives Safe When Used as Long-Term Treatment for Constipation in Children?”
    




Biguerlai tea contains the laxative senna.

Image Credit: Towfiqu Photography/Moment/GettyImages

Image Credit: Towfiqu Photography/Moment/GettyImages

      U.S. National Library of Medicine: “Senna”
    
      National Institutes of Health: “Senna”
    
      Mayo Clinic: “Oral Route”
    
      Harvard Health Publishing: “Don’t Bomb the Bowel With Laxatives”
    
      Cleveland Clinic: “Improving Your Health With Fiber”
    
      Nutrition Today: “Evidence-Based Approach to Fiber Supplements and Clinically Meaningful Health Benefits, Part 2”
    
      Journal of Pediatric Surgery: “Are Senna Based Laxatives Safe When Used as Long-Term Treatment for Constipation in Children?”