Psyllium Husk para Chronic Constipation

Multiple meta-analyses confirm psyllium significantly increases stool frequency (mean +2.4/week) and stool weight. Superior to placebo with NNT of 3 for constipation relief. Recommended by AGA and ACG guidelines.

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Conclusão

Key Study Findings

Review

The role of dietary fiber in the gastrointestinal tract: when, how and why?

Dose: None vs: None Outcome: None Efeito: None None

População: Review of dietary fiber role in GI tract

Review

Dietary management of chronic constipation: a review of evidence-based strategies and clinical guidelines.

Dose: None vs: None Outcome: None Efeito: None None

População: Review of dietary management of chronic constipation

Review

The role and therapeutic effectiveness of Plantago ovata husk (psyllium husk) in the prevention and …

Dose: None vs: None Outcome: None Efeito: None None

População: Review of psyllium husk for constipation and diarrhea

Meta-Analysis n=410

Conservative, physical and surgical interventions for managing faecal incontinence and constipation in adults with central …

Dose: None vs: Placebo Outcome: Constipation symptoms Efeito: SMD -0.62, 95% CI -1.10 to -0.14 None

População: Alzheimer's disease patients

Randomized Controlled Trial Double-blind

The effect of fiber supplementation with agave fructans or psyllium plantago in symptoms of constipation …

Dose: None vs: None Outcome: Constipation symptoms Efeito: None p > 0.05

População: Constipation patients

Meta-Analysis

Systematic review and meta-analysis: Foods, drinks and diets and their effect on chronic constipation in …

Dose: Various foods, drinks, diets vs: Control diet or placebo Outcome: Stool output, transit time, symptoms, QoL Efeito: None None

População: Adults with chronic constipation

Key Statistics

Estudos

1400

Participantes

↑

Positive

Nota

Referenced Papers

Dietary management of chronic constipation: a review of evidence-based strategies and clinical guidelines. Review

The Proceedings of … 2025 2 citações

The role and therapeutic effectiveness of Plantago ovata husk (psyllium husk) in the prevention and non-pharmacological treatment of gastrointestinal diseases. … Review

Przeglad gastroenterologiczny 2025 2 citações

The role of dietary fiber in the gastrointestinal tract: when, how and why? Review

Best practice & … 2025 1 citações

Comparison chart: Some drugs for irritable bowel syndrome with constipation (IBS-C). Other

The Medical letter … 2025

Drugs for irritable bowel syndrome. Other

The Medical letter … 2025

Synergistic effects of Ligilactobacillus salivarius Li01 and psyllium husk prevent mice from developing loperamide-induced constipation. Other

Food & function 2024 8 citações

Psyllium husk powder increases defecation frequency and faecal score, bulk and moisture in healthy cats. Other

Journal of feline … 2024 8 citações

[Phytotherapeutic recommendations in medical guidelines for the treatment of gastroenterological diseases - a systematic review]. Systematic Review

Zeitschrift fur Gastroenterologie 2024 3 citações

Conservative, physical and surgical interventions for managing faecal incontinence and constipation in adults with central neurological diseases. Meta-Analysis

The Cochrane database … 2024 3 citações

The effect of fiber supplementation with agave fructans or psyllium plantago in symptoms of constipation and its relation with whole … RCT

Neurogastroenterology and motility 2024 3 citações

Step on the accelerator: modern treatment of constipation. Review

Current opinion in … 2024 2 citações

Systematic review and meta-analysis: Foods, drinks and diets and their effect on chronic constipation in adults. Meta-Analysis

Alimentary pharmacology & … 2024

Effects of dietary fibers or probiotics on functional constipation symptoms and roles of gut microbiota: a double-blinded randomized placebo trial. RCT

Gut microbes 2023 143 citações

Dietary Fibers in Healthy Children and in Pediatric Gastrointestinal Disorders: A Practical Guide. Review

Nutrients 2023 43 citações

Consumption of 2 Green Kiwifruits Daily Improves Constipation and Abdominal Comfort-Results of an International Multicenter Randomized Controlled Trial. RCT

The American journal … 2023 39 citações

In persons with constipation or IBS-C, kiwifruit vs. psyllium increased spontaneous bowel movements. Other

Annals of internal … 2023

Psyllium: a useful functional ingredient in food systems. Review

Critical reviews in … 2022 99 citações

The Effect of Fiber Supplementation on Chronic Constipation in Adults: An Updated Systematic Review and Meta-Analysis of Randomized Controlled Trials. Meta-Analysis

The American journal … 2022 80 citações

Fiber-enriched botanicals: A therapeutic tool against certain metabolic ailments. Review

Food science & … 2022 52 citações

Kiwifruit and Kiwifruit Extracts for Treatment of Constipation: A Systematic Review and Meta-Analysis. Meta-Analysis

Canadian journal of … 2022 9 citações

Efficacy and Safety of Over-the-Counter Therapies for Chronic Constipation: An Updated Systematic Review. Systematic Review

The American journal … 2021 62 citações

Exploratory Comparative Effectiveness Trial of Green Kiwifruit, Psyllium, or Prunes in US Patients With Chronic Constipation. RCT

The American journal … 2021 47 citações

Medical Management of Constipation in Elderly Patients: Systematic Review. Review

Journal of neurogastroenterology … 2021 37 citações

Non-pharmacologic approach to pediatric constipation. Review

Complementary therapies in … 2021 30 citações

Dietary interventions and irritable bowel syndrome - what really works? Review

Current opinion in … 2021 6 citações

Laxative effects of wheat bran and psyllium: Resolving enduring misconceptions about fiber in treatment guidelines for chronic idiopathic constipation. Review

Journal of the … 2020 33 citações

Drugs for Irritable Bowel Syndrome. Other

The Medical letter … 2020

Canadian Association of Gastroenterology Clinical Practice Guideline for the Management of Irritable Bowel Syndrome (IBS). Other

Journal of the … 2019 171 citações

The Effect of Psyllium Husk on Intestinal Microbiota in Constipated Patients and Healthy Controls. RCT

International journal of … 2019 162 citações

Effect of flaxseed or psyllium vs. placebo on management of constipation, weight, glycemia, and lipids: A randomized trial in constipated … RCT

Clinical nutrition ESPEN 2019 64 citações

Irritable bowel syndrome and functional constipation management with integrative medicine: A systematic review. Other

World journal of … 2019 14 citações

Targeting patients' microbiota with probiotics and natural fibers in adults and children with constipation. Review

European review for … 2018 23 citações

Constipation and fecal incontinence in children with cerebral palsy. Overview of literature and flowchart for a stepwise approach. Review

Acta gastro-enterologica Belgica 2018 17 citações

Is Fibre an Effective Strategy to Improve Laxation in Long-Term Care Residents? Review

Canadian journal of … 2018 2 citações

Understanding the Physics of Functional Fibers in the Gastrointestinal Tract: An Evidence-Based Approach to Resolving Enduring Misconceptions about Insoluble and … Review

Journal of the … 2017 447 citações

Probiotics, fibre and herbal medicinal products for functional and inflammatory bowel disorders. Review

British journal of … 2017 145 citações

Management of chronic constipation in patients with diabetes mellitus. Review

Indian journal of … 2017 50 citações

Phosphorylation of psyllium seed polysaccharide and its characterization. Other

International journal of … 2016 69 citações

Fermented Fiber Supplements Are No Better Than Placebo for a Laxative Effect. Review

Digestive diseases and … 2016 28 citações

Use of polyethylene glycol in functional constipation and fecal impaction. Meta-Analysis

Revista espanola de … 2016 27 citações

Management of Constipation in Older Adults. Other

American family physician 2015

Systematic review: the effect of prunes on gastrointestinal function. Systematic Review

Alimentary pharmacology & … 2014 59 citações

Efficacy and complications of polyethylene glycols for treatment of constipation in children: a meta-analysis. Meta-Analysis

Medicine 2014 19 citações

Fiber and functional gastrointestinal disorders. Review

The American journal … 2013 421 citações

Treatment of irritable bowel syndrome. Review

Journal of clinical … 2011 30 citações

Dried plums, constipation and the irritable bowel syndrome. Other

Alimentary pharmacology & … 2011 3 citações

Irritable bowel syndrome: a mild disorder; purely symptomatic treatment. Other

Prescrire international 2009

Psyllium as therapeutic and drug delivery agent. Review

International journal of … 2007 375 citações

Constipation in long-term care. Review

Journal of the … 2007 84 citações

Current gut-directed therapies for irritable bowel syndrome. Other

Current treatment options … 2006 24 citações

[Plantago ovata]. Review

Acta chirurgica Iugoslavica 2006

[Therapeutic options of chronic constipation]. Review

Der Internist 2005 5 citações

Systematic review: the role of different types of fibre in the treatment of irritable bowel syndrome. Systematic Review

Alimentary pharmacology & … 2004 322 citações

Constipation in adults. Review

Clinical evidence 2004

Plantago ovata. (Psyllium). Review

Alternative medicine review … 2002 6 citações

Adverse effects of laxatives. Review

Diseases of the … 2001 199 citações

Constipation in Parkinson's disease: objective assessment and response to psyllium. Other

Movement disorders : … 1997 196 citações

Systematic review of the effectiveness of laxatives in the elderly. Systematic Review

Health technology assessment … 1997 128 citações

Psyllium anaphylaxis. Case Report

Allergy proceedings : … 1990 12 citações

Citrucel (methylcellulose/bulk-forming laxative). Other

Gastroenterology nursing : … 1989 3 citações

Double blind study of ispaghula in irritable bowel syndrome. CCT

Gut 1987 153 citações

Management of irritable bowel syndrome. Other

Biomedicine & pharmacotherapy … 1986 4 citações

IRRITABLE COLON. Other

JAMA 1964

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

Dosagens Comumente Utilizadas

general:: 5-10 g/day (with adequate water)
ibssupport:: 5-10 g/day (start low, titrate up over 1-2 weeks)
constipation:: 10-20 g/day in divided doses with at least 240 mL water per dose

Limite superior: Well-tolerated up to 30 g/day with adequate fluid intake

Dosagens Estudadas em Pesquisas

Dosagem	Duração	Efeito	N
None	--	Mixed	--
None	--	Mixed	--
None	--	Positive	--
None	--	Mixed	410
None	--	Negative	--
Various foods, drinks, diets	--	Positive	--
None	--	Positive	--
None	1 weeks	Neutral	--

Melhor horário: With meals and a full glass of water (240 mL minimum); space 1-2 hours from medications

Safety & Side Effects

Efeitos Colaterais Relatados

⚠ Gas and bloating (common initially; start with low dose and titrate up)
⚠ Esophageal/bowel obstruction if taken without adequate water (CRITICAL: always take with full glass of water)
⚠ Abdominal cramping at high initial doses
⚠ May reduce appetite (feeling of fullness)

Interações Conhecidas

● May reduce absorption of medications if taken simultaneously (space 1-2 hours)
● Lithium (reduced absorption)
● Carbamazepine (reduced absorption)
● Diabetes medications (may enhance blood sugar lowering; monitor glucose)

Ingestão máxima tolerável: Well-tolerated up to 30 g/day with adequate fluid intake

Consulte sempre o seu profissional de saúde antes de iniciar qualquer suplemento.Sempre consulte seu profissional de saúde antes de iniciar qualquer suplemento.

Frequently Asked Questions

Does Psyllium Husk help with Chronic Constipation?

Based on 18 studies with 1,400 participants, there is strong evidence from multiple clinical trials that Psyllium Husk may support Chronic Constipation management. Our evidence grade is A (Strong Evidence).

How much Psyllium Husk should I take for Chronic Constipation?

Studies have used various dosages. A commonly studied range is 5-10 g/day (with adequate water). Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of Psyllium Husk?

Reported side effects may include Gas and bloating (common initially; start with low dose and titrate up), Esophageal/bowel obstruction if taken without adequate water (CRITICAL: always take with full glass of water), Abdominal cramping at high initial doses, May reduce appetite (feeling of fullness). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for Psyllium Husk and Chronic Constipation?

We rate the evidence as Grade A (Strong Evidence). This rating is based on 18 peer-reviewed studies with 1,400 total participants. The overall direction of effect is positive.

Related Evidence

Outros ingredientes para Chronic Constipation

Inulin B Bifidobacterium lactis B Fructooligosaccharides (FOS) C

Psyllium Husk para outras condições

Irritable Bowel Syndrome (IBS) B

Veredito Rápido

Evidence Strength92%

High confidence

Detalhamento dos Estudos

RCT (6)Meta (6)Other (6)

Comparar Alternativas

Veja como outros ingredientes se comparam para esta condição.

Ver todos os ingredientes para Chronic Constipation

Saiba Mais

Aviso Legal da FDA: Estas declarações não foram avaliadas pela Food and Drug Administration. Os produtos e informações neste site não se destinam a diagnosticar, tratar, curar ou prevenir qualquer doença. As notas de evidência apresentadas são baseadas em nossa análise de pesquisas revisadas por pares publicadas e não constituem aconselhamento médico. Sempre consulte seu profissional de saúde antes de iniciar qualquer regime de suplementação.