Psyllium Husk per Irritable Bowel Syndrome (IBS)
B Evidenze Almeno un trial randomizzato lo supporta, con risultati per lo più coerenti.ACG recommends soluble fiber (psyllium) over insoluble fiber for IBS. Improves global IBS symptoms with particular benefit in IBS-C. NNT of 7 for global symptom improvement.
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B
In sintesi
ACG recommends soluble fiber (psyllium) over insoluble fiber for IBS. Improves global IBS symptoms with particular benefit in IBS-C. NNT of 7 for global symptom improvement.
Key Study Findings
Observational Study
n=97
Survey of Latin American gastroenterologists, specialists in disorders of gut-brain interaction, on the diagnosis and …
Dose: None
vs: None
Outcome: IBS management heterogeneity in Latin America
Effetto: None
None
Popolazione: Latin American gastroenterologists (DGBI specialists)
Review
The role of dietary fiber in the gastrointestinal tract: when, how and why?
Dose: None
vs: None
Outcome: None
Effetto: None
None
Popolazione: Review of dietary fiber role in GI tract
Review
The role and therapeutic effectiveness of Plantago ovata seed husk (psyllium husk) in the prevention …
Dose: None
vs: None
Outcome: Colitis severity
Effetto: None
None
Popolazione: Ulcerative colitis patients
Randomized Controlled Trial
n=314
Sex-Dependent Efficacy of Dietary Fiber in Pediatric Functional Abdominal Pain.
Dose: Dietary fiber (psyllium)
vs: Low fiber diet
Outcome: Abdominal pain frequency
Effetto: None
None
Popolazione: Children with functional abdominal pain disorders
Randomized Controlled Trial
3 weeks
Double-blind
Nutraceuticals and Pain Disorders of the Gut-Brain Interaction in Infants and Children: A Narrative Review …
Dose: None
vs: Placebo
Outcome: Pain outcomes
Effetto: None
None
Popolazione: IBS patients
Systematic Review
[Phytotherapeutic recommendations in medical guidelines for the treatment of gastroenterological diseases - a systematic review].
Dose: Peppermint oil, STW-5, psyllium, others
vs: Standard care or placebo
Outcome: Symptom improvement in GI diseases
Effetto: None
None
Popolazione: Patients with gastroenterological diseases
Key Statistics
8
Studi
900
Partecipanti
↑
Positive
B
Grado
Referenced Papers
Best practice & …
2025
1 citazioni
The Medical letter …
2025
The Medical letter …
2025
Revista de gastroenterologia …
2025
The Medical letter …
2025
Gastroenterology
2024
8 citazioni
Nutrients
2024
5 citazioni
Przeglad gastroenterologiczny
2024
4 citazioni
[Phytotherapeutic recommendations in medical guidelines for the treatment of gastroenterological diseases - a systematic review].
Systematic Review
Zeitschrift fur Gastroenterologie
2024
3 citazioni
Gastroenterology
2024
3 citazioni
Dietary Fibers in Healthy Children and in Pediatric Gastrointestinal Disorders: A Practical Guide.
Review
Nutrients
2023
43 citazioni
The American journal …
2023
39 citazioni
Nutrients
2023
32 citazioni
Journal of pediatric …
2023
21 citazioni
Nutrients
2023
4 citazioni
Journal of pediatric …
2023
1 citazioni
In persons with constipation or IBS-C, kiwifruit vs. psyllium increased spontaneous bowel movements.
Other
Annals of internal …
2023
Gut
2022
39 citazioni
American journal of …
2022
18 citazioni
Expert review of …
2022
8 citazioni
The Turkish journal …
2021
14 citazioni
Current opinion in …
2021
6 citazioni
The lancet. Gastroenterology …
2020
119 citazioni
The Medical letter …
2020
Journal of the …
2019
171 citazioni
World journal of …
2019
14 citazioni
International journal of …
2017
146 citazioni
Probiotics, fibre and herbal medicinal products for functional and inflammatory bowel disorders.
Review
British journal of …
2017
145 citazioni
Clinical gastroenterology and …
2017
93 citazioni
Journal of gastroenterology …
2017
32 citazioni
Current opinion in …
2017
24 citazioni
International journal of …
2016
69 citazioni
Clinical gastroenterology and …
2016
2 citazioni
Digestion
2014
61 citazioni
The American journal …
2013
421 citazioni
Journal of clinical …
2011
30 citazioni
Alimentary pharmacology & …
2011
3 citazioni
Canadian journal of …
2011
Current opinion in …
2010
22 citazioni
BMJ (Clinical research …
2009
296 citazioni
Australian family physician
2009
12 citazioni
Prescrire international
2009
BMJ (Clinical research …
2008
550 citazioni
International journal of …
2007
375 citazioni
Digestive diseases and …
2006
70 citazioni
Current treatment options …
2006
24 citazioni
Systematic review: the role of different types of fibre in the treatment of irritable bowel syndrome.
Systematic Review
Alimentary pharmacology & …
2004
322 citazioni
Gut
1987
153 citazioni
Biomedicine & pharmacotherapy …
1986
4 citazioni
Annals of internal …
1981
91 citazioni
Annals of internal …
1981
6 citazioni
IRRITABLE COLON.
Other
JAMA
1964
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
Dosaggi di uso comune
- 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 massimo: Well-tolerated up to 30 g/day with adequate fluid intake
Dosaggi studiati nella ricerca
| Dosaggio | Durata | Effetto | N |
|---|---|---|---|
| None | -- | Mixed | 97 |
| None | -- | Mixed | -- |
| None | -- | Positive | -- |
| Dietary fiber (psyllium) | -- | Positive | 314 |
| None | 3 weeks | Positive | -- |
| Peppermint oil, STW-5, psyllium, others | -- | Positive | -- |
| None | -- | Mixed | -- |
| Low-FODMAP, probiotics, fiber | -- | Positive | -- |
Momento migliore per l'assunzione: With meals and a full glass of water (240 mL minimum); space 1-2 hours from medications
Safety & Side Effects
Effetti collaterali segnalati
- ⚠ 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)
Interazioni note
- ● 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)
Livello di assunzione massimo tollerabile: Well-tolerated up to 30 g/day with adequate fluid intake
Consultare sempre il proprio medico prima di iniziare qualsiasi integratore.Consultate sempre il vostro medico prima di iniziare qualsiasi integratore.
Frequently Asked Questions
Does Psyllium Husk help with Irritable Bowel Syndrome (IBS)?
Based on 8 studies with 900 participants, there is moderate evidence from clinical studies that Psyllium Husk may support Irritable Bowel Syndrome (IBS) management. Our evidence grade is B (Good Evidence).
How much Psyllium Husk should I take for Irritable Bowel Syndrome (IBS)?
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 Irritable Bowel Syndrome (IBS)?
We rate the evidence as Grade B (Good Evidence). This rating is based on 8 peer-reviewed studies with 900 total participants. The overall direction of effect is positive.
Related Evidence
Altri ingredienti per Irritable Bowel Syndrome (IBS)
Psyllium Husk per altre condizioni
References
- [1] Christian von Muhlenbrock et al.. Best Pract Res Clin Gastroenterol. 2025. The role of dietary fiber in the gastrointestinal tract: when, how and why? doi:10.1016/j.bpg.2025.102080 PubMed
- [2] . Med Lett Drugs Ther. 2025. Comparison chart: Some drugs for irritable bowel syndrome with constipation (IBS-C). doi:10.58347/tml.2025.1721e PubMed
- [3] . Med Lett Drugs Ther. 2025. Drugs for irritable bowel syndrome. doi:10.58347/tml.2025.1721a PubMed
- [4] I Hanna-Jairala et al.. Rev Gastroenterol Mex (Engl Ed). 2025. Survey of Latin American gastroenterologists, specialists in disorders of gut-brain interaction, on the diagnosis and treatment of irritable bowel syndrome … doi:10.1016/j.rgmxen.2025.10.001 PubMed
- [5] . Med Lett Drugs Ther. 2025. Comparison chart: Some drugs for irritable bowel syndrome with diarrhea (IBS-D). doi:10.58347/tml.2025.1721f PubMed
- [6] Pankaj Garg et al.. Gastroenterology. 2024. Psyllium Husk Positively Alters Gut Microbiota, Decreases Inflammation, and Has Bowel-Regulatory Action, Paving the Way for Physiologic Management of Irritable … doi:10.1053/j.gastro.2023.11.019 PubMed
- [7] Silvia Salvatore et al.. Nutrients. 2024. Nutraceuticals and Pain Disorders of the Gut-Brain Interaction in Infants and Children: A Narrative Review and Practical Insights. doi:10.3390/nu16030349 PubMed
- [8] Justyna Przybyszewska et al.. Prz Gastroenterol. 2024. The role and therapeutic effectiveness of Plantago ovata seed husk (psyllium husk) in the prevention and non-pharmacological treatment of gastrointestinal … doi:10.5114/pg.2024.139209 PubMed
- [9] Sandra Utz et al.. Z Gastroenterol. 2024. [Phytotherapeutic recommendations in medical guidelines for the treatment of gastroenterological diseases - a systematic review]. doi:10.1055/a-2279-5045 PubMed
- [10] Sik Yu So et al.. Gastroenterology. 2024. Sex-Dependent Efficacy of Dietary Fiber in Pediatric Functional Abdominal Pain. doi:10.1053/j.gastro.2023.12.011 PubMed
- [11] Silvia Salvatore et al.. Nutrients. 2023. Dietary Fibers in Healthy Children and in Pediatric Gastrointestinal Disorders: A Practical Guide. doi:10.3390/nu15092208 PubMed
- [12] Richard Gearry et al.. Am J Gastroenterol. 2023. Consumption of 2 Green Kiwifruits Daily Improves Constipation and Abdominal Comfort-Results of an International Multicenter Randomized Controlled Trial. doi:10.14309/ajg.0000000000002124 PubMed
- [13] Marcelina Radziszewska et al.. Nutrients. 2023. Nutrition, Physical Activity and Supplementation in Irritable Bowel Syndrome. doi:10.3390/nu15163662 PubMed
- [14] Jagadeesh Menon et al.. J Pediatr Gastroenterol Nutr. 2023. Efficacy of Oral Psyllium in Pediatric Irritable Bowel Syndrome: A Double-Blind Randomized Control Trial. doi:10.1097/MPG.0000000000003622 PubMed
- [15] Daniela Pop et al.. Nutrients. 2023. The Use of Fibers, Herbal Medicines and Spices in Children with Irritable Bowel Syndrome: A Narrative Review. doi:10.3390/nu15204351 PubMed
- [16] Miranda A L van Tilburg et al.. J Pediatr Gastroenterol Nutr. 2023. Efficacy of Oral Psyllium in Pediatric Irritable Bowel Syndrome: A Double-Blind Randomized Control Trial. doi:10.1097/MPG.0000000000003814 PubMed
- [17] Blake J Purtle et al.. Ann Intern Med. 2023. In persons with constipation or IBS-C, kiwifruit vs. psyllium increased spontaneous bowel movements. doi:10.7326/J23-0022 PubMed
- [18] David Gunn et al.. Gut. 2022. Psyllium reduces inulin-induced colonic gas production in IBS: MRI and in vitro fermentation studies. doi:10.1136/gutjnl-2021-324784 PubMed
- [19] Andrew Thomas et al.. Am J Lifestyle Med. 2022. Dietary Modification for the Restoration of Gut Microbiome and Management of Symptoms in Irritable Bowel Syndrome. doi:10.1177/15598276211012968 PubMed
- [20] Diego Currò. Expert Rev Gastroenterol Hepatol. 2022. Current evidence on the therapeutic use of fiber in irritable bowel syndrome. doi:10.1080/17474124.2021.1924057 PubMed
- [21] Pankaj Garg. Turk J Gastroenterol. 2021. Inflammation in Irritable Bowel Syndrome (IBS): Role of Psyllium Fiber Supplementation in Decreasing Inflammation and Physiological Management of IBS. doi:10.5152/tjg.2020.20229 PubMed
- [22] Teodora Surdea-Blaga et al.. Curr Opin Gastroenterol. 2021. Dietary interventions and irritable bowel syndrome - what really works? doi:10.1097/MOG.0000000000000706 PubMed
- [23] Christopher J Black et al.. Lancet Gastroenterol Hepatol. 2020. Efficacy of soluble fibre, antispasmodic drugs, and gut-brain neuromodulators in irritable bowel syndrome: a systematic review and network meta-analysis. doi:10.1016/S2468-1253(19)30324-3 PubMed
- [24] . Med Lett Drugs Ther. 2020. Drugs for Irritable Bowel Syndrome. PubMed
- [25] Paul Moayyedi et al.. J Can Assoc Gastroenterol. 2019. Canadian Association of Gastroenterology Clinical Practice Guideline for the Management of Irritable Bowel Syndrome (IBS). doi:10.1093/jcag/gwy071 PubMed
- [26] Liang Dai et al.. World J Clin Cases. 2019. Irritable bowel syndrome and functional constipation management with integrative medicine: A systematic review. doi:10.12998/wjcc.v7.i21.3486 PubMed
- [27] Magdy El-Salhy et al.. Int J Mol Med. 2017. Dietary fiber in irritable bowel syndrome (Review). doi:10.3892/ijmm.2017.3072 PubMed
- [28] Diego Currò et al.. Br J Pharmacol. 2017. Probiotics, fibre and herbal medicinal products for functional and inflammatory bowel disorders. doi:10.1111/bph.13632 PubMed
- [29] Robert J Shulman et al.. Clin Gastroenterol Hepatol. 2017. Psyllium Fiber Reduces Abdominal Pain in Children With Irritable Bowel Syndrome in a Randomized, Double-Blind Trial. doi:10.1016/j.cgh.2016.03.045 PubMed
- [30] Emma P Halmos. J Gastroenterol Hepatol. 2017. When the low FODMAP diet does not work. doi:10.1111/jgh.13701 PubMed
- [31] Eirini Dimidi et al.. Curr Opin Clin Nutr Metab Care. 2017. Irritable bowel syndrome and diet: where are we in 2018? doi:10.1097/MCO.0000000000000416 PubMed
- [32] Monica R P Rao et al.. Int J Biol Macromol. 2016. Phosphorylation of psyllium seed polysaccharide and its characterization. doi:10.1016/j.ijbiomac.2015.12.043 PubMed
- [33] Daniël R Hoekman et al.. Clin Gastroenterol Hepatol. 2016. Should We Treat Our Pediatric Irritable Bowel Syndrome Patients With Psyllium? doi:10.1016/j.cgh.2016.06.001 PubMed
- [34] Katy E Trinkley et al.. Digestion. 2014. Medication management of irritable bowel syndrome. doi:10.1159/000362405 PubMed
- [35] Shanti Eswaran et al.. Am J Gastroenterol. 2013. Fiber and functional gastrointestinal disorders. doi:10.1038/ajg.2013.63 PubMed
- [36] K E Trinkley et al.. J Clin Pharm Ther. 2011. Treatment of irritable bowel syndrome. doi:10.1111/j.1365-2710.2010.01177.x PubMed
- [37] E P Halmos et al.. Aliment Pharmacol Ther. 2011. Dried plums, constipation and the irritable bowel syndrome. doi:10.1111/j.1365-2036.2011.04719.x PubMed
- [38] Laura E Chouinard. Can J Diet Pract Res. 2011. The role of psyllium fibre supplementation in treating irritable bowel syndrome. doi:10.3148/72.1.2011.48 PubMed
- [39] Eduard Cabré. Curr Opin Clin Nutr Metab Care. 2010. Irritable bowel syndrome: can nutrient manipulation help? doi:10.1097/MCO.0b013e32833b6471 PubMed
- [40] C J Bijkerk et al.. BMJ. 2009. Soluble or insoluble fibre in irritable bowel syndrome in primary care? Randomised placebo controlled trial. doi:10.1136/bmj.b3154 PubMed
- [41] Marie Pirotta. Aust Fam Physician. 2009. Irritable bowel syndrome - The role of complementary medicines in treatment. PubMed
- [42] . Prescrire Int. 2009. Irritable bowel syndrome: a mild disorder; purely symptomatic treatment. PubMed
- [43] Alexander C Ford et al.. BMJ. 2008. Effect of fibre, antispasmodics, and peppermint oil in the treatment of irritable bowel syndrome: systematic review and meta-analysis. doi:10.1136/bmj.a2313 PubMed
- [44] Baljit Singh. Int J Pharm. 2007. Psyllium as therapeutic and drug delivery agent. doi:10.1016/j.ijpharm.2007.01.028 PubMed
- [45] Reyhaneh Vejdani et al.. Dig Dis Sci. 2006. The efficacy of an herbal medicine, Carmint, on the relief of abdominal pain and bloating in patients with irritable bowel … doi:10.1007/s10620-006-9079-3 PubMed
- [46] Howard Y Chang et al.. Curr Treat Options Gastroenterol. 2006. Current gut-directed therapies for irritable bowel syndrome. doi:10.1007/s11938-006-0013-8 PubMed
- [47] C J Bijkerk et al.. Aliment Pharmacol Ther. 2004. Systematic review: the role of different types of fibre in the treatment of irritable bowel syndrome. doi:10.1111/j.0269-2813.2004.01862.x PubMed
- [48] A Prior et al.. Gut. 1987. Double blind study of ispaghula in irritable bowel syndrome. doi:10.1136/gut.28.11.1510 PubMed
- [49] A Prior et al.. Biomed Pharmacother. 1986. Management of irritable bowel syndrome. PubMed
- [50] G F Longstreth et al.. Ann Intern Med. 1981. Psyllium therapy in the irritable bowel syndrome. A double-blind trial. doi:10.7326/0003-4819-95-1-53 PubMed
- [51] D S Greenbaum et al.. Ann Intern Med. 1981. Psyllium and the irritable bowel syndrome. doi:10.7326/0003-4819-95-5-660_1 PubMed
- [52] A P KLOTZ. JAMA. 1964. IRRITABLE COLON. PubMed
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