Fructooligosaccharides (FOS) para Chronic Constipation
C Evidências Evidência limitada de estudos de pequena dimensão, mas existem alguns sinais positivos.Some studies show increased stool frequency. Bifidogenic effect well-established but clinical laxation effect more modest than inulin.
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C
Conclusão
Some studies show increased stool frequency. Bifidogenic effect well-established but clinical laxation effect more modest than inulin.
Key Study Findings
Review
Prebiotics and Gut Health: Mechanisms, Clinical Evidence, and Future Directions.
Dose: None
vs: None
Outcome: gut health outcomes including microbiota modulation and SCFA …
Efeito: None
None
População: healthy individuals, children, elderly, and those with constipation, metabolic syndrome, or dysbiosis
Randomized Controlled Trial
n=67
4 weeks
Double-blind
Effects and Persistence of Bifidobacterium animalis subsp. lactis BL-99 and Fructooligosaccharides on Older Adults with …
Dose: None
vs: Placebo
Outcome: Weekly spontaneous bowel movements
Efeito: 4.94 vs 3.00 (P<0.001)
P<0.001
População: Older adults >=60 with functional constipation (Rome IV)
Other
Maternal or post-weaning dietary fructo-oligosaccharide supplementation reduces stillbirth rate of sows and diarrhea of weaned …
Dose: 2 g
vs: None
Outcome: Constipation symptoms
Efeito: None
P < 0.05
População: Constipation patients
Randomized Controlled Trial
Double-blind
Xylo-oligosaccharides improve functional constipation by targeted enrichment of Bifidobacterium.
Dose: 6 g
vs: Placebo
Outcome: Constipation symptoms
Efeito: None
None
População: Constipation patients
Systematic Review
Fructooligosaccharides for Relieving Functional Constipation: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
Dose: None
vs: None
Outcome: Constipation symptoms
Efeito: OR: 10.36
p < 0.00001
População: Constipation patients
Randomized Controlled Trial
Double-blind
Advice to People with Parkinson's in My Clinic: Probiotics and Prebiotics.
Dose: None
vs: Placebo
Outcome: Constipation symptoms
Efeito: None
None
População: Constipation patients
Key Statistics
4
Estudos
350
Participantes
↑
Positive
C
Nota
Referenced Papers
Nutrients
2026
1 citações
The journal of …
2025
Xylo-oligosaccharides improve functional constipation by targeted enrichment of Bifidobacterium.
Other
Food science & …
2024
17 citações
Foods (Basel, Switzerland)
2024
8 citações
Journal of Parkinson's …
2024
4 citações
Animal nutrition (Zhongguo …
2024
4 citações
Carbohydrate polymers
2022
77 citações
Frontiers in nutrition
2022
22 citações
Nutrients
2019
35 citações
Nutrients
2018
30 citações
Journal of the …
2017
447 citações
Neurogastroenterology and motility
2017
131 citações
Nutrients
2017
28 citações
Clinical nutrition (Edinburgh, …
2017
20 citações
Peritoneal dialysis international …
2016
38 citações
World journal of …
2014
16 citações
Clinical nutrition (Edinburgh, …
2013
Nutrition (Burbank, Los …
2011
65 citações
Journal of medicinal …
2011
24 citações
Journal of physiology …
2009
312 citações
Journal of the …
2007
84 citações
BioFactors (Oxford, England)
2004
48 citações
The British journal …
2003
97 citações
Journal of renal …
1998
71 citações
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
Dosagens Comumente Utilizadas
- general:
- 2-10 g/day
- prebioticeffect:
- 5-8 g/day for bifidogenic effect
- constipationsupport:
- 5-10 g/day
Limite superior: Well-tolerated up to 20 g/day; start low to avoid excess gas
Dosagens Estudadas em Pesquisas
| Dosagem | Duração | Efeito | N |
|---|---|---|---|
| None | -- | Positive | -- |
| None | 4 weeks | Positive | 67 |
| 2 g | -- | Neutral | -- |
| 6 g | -- | Positive | -- |
| None | -- | Positive | -- |
| None | -- | Positive | -- |
| None | -- | Mixed | -- |
| None | -- | Positive | -- |
Melhor horário: With meals; divide doses throughout the day
Safety & Side Effects
Efeitos Colaterais Relatados
- ⚠ Gas, bloating, and flatulence (dose-dependent; more common above 10 g/day)
- ⚠ Abdominal cramping at higher doses
- ⚠ May worsen IBS symptoms in FODMAP-sensitive individuals
- ⚠ Loose stools at excessive doses
Interações Conhecidas
- ● Other FODMAPs (cumulative fermentation effect in sensitive individuals)
- ● Blood sugar-lowering medications (FOS may modestly affect glycemic response)
- ● Calcium supplements (FOS may enhance calcium absorption)
Ingestão máxima tolerável: Well-tolerated up to 20 g/day; start low to avoid excess gas
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 Fructooligosaccharides (FOS) help with Chronic Constipation?
Based on 4 studies with 350 participants, there is limited but promising evidence that Fructooligosaccharides (FOS) may support Chronic Constipation management. Our evidence grade is C (Some Evidence).
How much Fructooligosaccharides (FOS) should I take for Chronic Constipation?
Studies have used various dosages. A commonly studied range is 2-10 g/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Fructooligosaccharides (FOS)?
Reported side effects may include Gas, bloating, and flatulence (dose-dependent; more common above 10 g/day), Abdominal cramping at higher doses, May worsen IBS symptoms in FODMAP-sensitive individuals, Loose stools at excessive doses. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Fructooligosaccharides (FOS) and Chronic Constipation?
We rate the evidence as Grade C (Some Evidence). This rating is based on 4 peer-reviewed studies with 350 total participants. The overall direction of effect is positive.
Related Evidence
Outros ingredientes para Chronic Constipation
Fructooligosaccharides (FOS) para outras condições
References
- [1] Cinara Regina A V Monteiro et al.. Nutrients. 2026. Prebiotics and Gut Health: Mechanisms, Clinical Evidence, and Future Directions. doi:10.3390/nu18030372 PubMed
- [2] Meina Li et al.. J Nutr Health Aging. 2025. Effects and Persistence of Bifidobacterium animalis subsp. lactis BL-99 and Fructooligosaccharides on Older Adults with Functional Constipation: A Randomized, Double-Blind, … doi:10.1016/j.jnha.2025.100598 PubMed
- [3] Wanya Yi et al.. Food Sci Nutr. 2024. Xylo-oligosaccharides improve functional constipation by targeted enrichment of Bifidobacterium. doi:10.1002/fsn3.3827 PubMed
- [4] Hongmin Zhen et al.. Foods. 2024. Fructooligosaccharides for Relieving Functional Constipation: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. doi:10.3390/foods13243993 PubMed
- [5] Jia Wei Hor et al.. J Parkinsons Dis. 2024. Advice to People with Parkinson's in My Clinic: Probiotics and Prebiotics. doi:10.3233/JPD-240172 PubMed
- [6] Kaidi Ma et al.. Anim Nutr. 2024. Maternal or post-weaning dietary fructo-oligosaccharide supplementation reduces stillbirth rate of sows and diarrhea of weaned piglets. doi:10.1016/j.aninu.2024.04.002 PubMed
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- [8] Qi Zhang et al.. Front Nutr. 2022. In vitro Study of Bifidobacterium lactis BL-99 With Fructooligosaccharide Synbiotics Effected on the Intestinal Microbiota. doi:10.3389/fnut.2022.890316 PubMed
- [9] Jan de Vries et al.. Nutrients. 2019. Effects of β-Fructans Fiber on Bowel Function: A Systematic Review and Meta-Analysis. doi:10.3390/nu11010091 PubMed
- [10] Daniela da Silva Souza et al.. Nutrients. 2018. Randomized, Double-Blind, Placebo-Controlled Parallel Clinical Trial Assessing the Effect of Fructooligosaccharides in Infants with Constipation. doi:10.3390/nu10111602 PubMed
- [11] Johnson W McRorie et al.. J Acad Nutr Diet. 2017. Understanding the Physics of Functional Fibers in the Gastrointestinal Tract: An Evidence-Based Approach to Resolving Enduring Misconceptions about Insoluble and … doi:10.1016/j.jand.2016.09.021 PubMed
- [12] F Azpiroz et al.. Neurogastroenterol Motil. 2017. Effects of scFOS on the composition of fecal microbiota and anxiety in patients with irritable bowel syndrome: a randomized, double … doi:10.1111/nmo.12911 PubMed
- [13] Shinji Jinno et al.. Nutrients. 2017. Maternal Prebiotic Ingestion Increased the Number of Fecal Bifidobacteria in Pregnant Women but Not in Their Neonates Aged One Month. doi:10.3390/nu9030196 PubMed
- [14] Annelisa Silva E Alves de Carvalho Santos et al.. Clin Nutr. 2017. Effectiveness of nutritional treatment and synbiotic use on gastrointestinal symptoms reduction in HIV-infected patients: Randomized clinical trial. doi:10.1016/j.clnu.2016.06.005 PubMed
- [15] Kulwara Meksawan et al.. Perit Dial Int. 2016. Effects of Fructo-Oligosaccharide Supplementation on Constipation in Elderly Continuous Ambulatory Peritoneal Dialysis Patients. doi:10.3747/pdi.2014.00015 PubMed
- [16] Petra A M J Scholtens et al.. World J Gastroenterol. 2014. Stool characteristics of infants receiving short-chain galacto-oligosaccharides and long-chain fructo-oligosaccharides: a review. doi:10.3748/wjg.v20.i37.13446 PubMed
- [17] Dan L Waitzberg et al.. Clin Nutr. 2013. Effect of synbiotic in constipated adult women - a randomized, double-blind, placebo-controlled study of clinical response. doi:10.1016/j.clnu.2012.08.010 PubMed
- [18] Chi-Hua Yen et al.. Nutrition. 2011. Beneficial effects of fructo-oligosaccharides supplementation on fecal bifidobacteria and index of peroxidation status in constipated nursing-home residents--a placebo-controlled, diet-controlled trial. doi:10.1016/j.nut.2010.02.009 PubMed
- [19] Esther Nova et al.. J Med Food. 2011. Beneficial effects of a synbiotic supplement on self-perceived gastrointestinal well-being and immunoinflammatory status of healthy adults. doi:10.1089/jmf.2008.0328 PubMed
- [20] M Sabater-Molina et al.. J Physiol Biochem. 2009. Dietary fructooligosaccharides and potential benefits on health. doi:10.1007/BF03180584 PubMed
- [21] Syed H Tariq. J Am Med Dir Assoc. 2007. Constipation in long-term care. doi:10.1016/j.jamda.2007.02.009 PubMed
- [22] Takahisa Tokunaga. Biofactors. 2004. Novel physiological function of fructooligosaccharides. doi:10.1002/biof.552210117 PubMed
- [23] Nancy Moore et al.. Br J Nutr. 2003. Effects of fructo-oligosaccharide-supplemented infant cereal: a double-blind, randomized trial. doi:10.1079/bjn2003950 PubMed
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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.