The Effect of Fiber Supplementation on Chronic Constipation in Adults: An Updated Systematic Review and Meta-Analysis of Randomized Controlled Trials
The American Journal of Clinical Nutrition
Reviewed guidance
Psyllium for chronic constipation
An updated systematic review and meta-analysis of randomized trials found some benefit from fiber supplementation for chronic constipation, but effects varied and evidence may not establish the best product, dose, or applicability to every person.
What this means
May modestly improve stool frequency or constipation symptoms in adults with chronic constipation; evidence is for fiber supplementation and may not apply equally to every psyllium product.
How to use it: Use the product exactly as labeled, mix with sufficient liquid, and increase gradually if directed. Do not take it dry. Keep separate from medicines when the label or pharmacist advises.
Safety & cautions
Do not use without medical advice if you have difficulty swallowing or possible bowel blockage. Stop and seek care for chest pain, trouble swallowing or breathing, severe abdominal pain, vomiting, or inability to pass stool or gas. Adequate fluid is important, especially with granular products.
Get medical care for symptoms that are severe, last longer than expected, get worse, or otherwise concern you.
Household preparations
Practical ways to use the ingredient may not provide the same form or amount discussed in the evidence.
Evidence transparency