Psyllium Husk para Chronic Constipation
A Evidências Vários grandes ensaios clínicos mostram de forma consistente benefícios significativos.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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A
Conclusão
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.
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
18
Estudos
1400
Participantes
↑
Positive
A
Nota
Referenced Papers
The Proceedings of …
2025
2 citações
Przeglad gastroenterologiczny
2025
2 citações
Best practice & …
2025
1 citações
The Medical letter …
2025
The Medical letter …
2025
Food & function
2024
8 citações
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
The Cochrane database …
2024
3 citações
Neurogastroenterology and motility
2024
3 citações
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
Gut microbes
2023
143 citações
Dietary Fibers in Healthy Children and in Pediatric Gastrointestinal Disorders: A Practical Guide.
Review
Nutrients
2023
43 citações
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
Critical reviews in …
2022
99 citações
The American journal …
2022
80 citações
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
The American journal …
2021
47 citações
Journal of neurogastroenterology …
2021
37 citações
Complementary therapies in …
2021
30 citações
Current opinion in …
2021
6 citações
Journal of the …
2020
33 citações
The Medical letter …
2020
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
Clinical nutrition ESPEN
2019
64 citações
World journal of …
2019
14 citações
European review for …
2018
23 citações
Acta gastro-enterologica Belgica
2018
17 citações
Canadian journal of …
2018
2 citações
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
Indian journal of …
2017
50 citações
International journal of …
2016
69 citações
Digestive diseases and …
2016
28 citações
Revista espanola de …
2016
27 citações
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
The American journal …
2013
421 citações
Journal of clinical …
2011
30 citações
Alimentary pharmacology & …
2011
3 citações
Prescrire international
2009
International journal of …
2007
375 citações
Journal of the …
2007
84 citações
Current treatment options …
2006
24 citações
[Plantago ovata].
Review
Acta chirurgica Iugoslavica
2006
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
Diseases of the …
2001
199 citações
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
Gastroenterology nursing : …
1989
3 citações
Gut
1987
153 citações
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
Psyllium Husk para outras condições
References
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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.