Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/10/2025

Dietary Fiber Intake for Constipation Relief in Pregnancy

  • Prunes and raisins are excellent sources of fiber, contributing to constipation relief in pregnant individuals 1
  • Apples, apricots, and pears contain both soluble and insoluble fiber, aiding in bowel regularity during pregnancy, as recommended by the American Academy of Pediatrics 2
  • Bananas provide easy-to-digest fiber, supporting healthy bowel function in pregnant women 2
  • Oranges, grapefruits, and other citrus fruits combine fiber with hydration, promoting digestive health in pregnancy 2
  • Berries, such as strawberries and blueberries, offer fiber with additional antioxidants, contributing to overall health during pregnancy 2
  • Broccoli, collards, and kale are rich sources of fiber, supporting constipation relief in pregnant individuals 2
  • Spinach and other leafy greens provide fiber and essential nutrients, aiding in healthy pregnancy outcomes 2
  • Carrots and green beans offer digestible fiber, supporting bowel regularity during pregnancy 2
  • Sweet potatoes combine fiber with other nutrients beneficial during pregnancy, such as folate and iron 2
  • Lima beans and other legumes are excellent sources of fiber, contributing to healthy bowel function in pregnant women 2

Dietary Recommendations

  • Aim for 3-4 servings of fruits and 3-4 servings of vegetables daily to support constipation relief in pregnancy, as recommended by the American Academy of Pediatrics 2
  • A serving equals 1 medium fruit, 1/2 cup cut-up fruit, 1 cup raw leafy vegetables, or 1/2 cup cooked vegetables, providing a guideline for adequate fiber intake 2
  • Starting the day with fruit at breakfast can help establish regular bowel habits in pregnant individuals 1
  • Including raw vegetables as snacks between meals can support healthy bowel function during pregnancy 2
  • Adding fruits to yogurt or cereal can provide additional fiber, aiding in constipation relief 2
  • Making vegetable-based soups can combine fiber with hydration, promoting digestive health in pregnancy 2

Management of Constipation During Pregnancy

Prevalence and Causes

  • Constipation affects approximately 20-40% of pregnant women 3, 4, 5
  • Primary causes include increased progesterone levels slowing GI motility 3, 5
  • Hormonal, medication-related, and physiological changes contribute to constipation 3, 5
  • Mechanical compression from the gravid uterus, especially in the third trimester, can cause constipation 3
  • Low dietary fiber intake during pregnancy is a significant factor 3

Evaluation

  • A detailed history regarding frequency and consistency of bowel movements is essential 3
  • Assessment of pain or bleeding during bowel movements is necessary 3
  • Evaluation of symptom severity is crucial 3
  • Screening for hemorrhoids, which occur in approximately 80% of pregnant women, is recommended 3

Treatment Algorithm

Step 1: Non-Pharmacological Approaches

  • Increase dietary fiber intake to approximately 30 g/day (fruits, vegetables, whole grains, legumes) 3, 4, 5
  • Ensure adequate fluid intake, particularly water, to soften stools 3, 5
  • Allow sufficient time for bowel movements and use relaxation techniques 3

Step 2: Bulk-Forming Agents

  • Psyllium husk or methylcellulose are safe during pregnancy due to minimal systemic absorption 3, 5
  • Soluble fiber (psyllium) improves stool viscosity and transit time while increasing bulk 3
  • Note that excessive fiber can cause maternal bloating 3, 5

Step 3: Osmotic Laxatives

  • Polyethylene glycol (PEG) can be safely administered during pregnancy 3, 5
  • Lactulose is also safe but may cause more bloating than PEG 3, 5

Step 4: Other Options (with caution)

  • Stimulant laxatives should generally be avoided as safety data are conflicting 3, 5

Special Considerations

  • For hemorrhoids associated with constipation, hydrocortisone foam has been shown to be safe in the third trimester 3, 5

Cautions and Contraindications

  • Stimulant laxatives should be used cautiously and only for short-term relief 3, 5