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L-Glutamine لـ Irritable Bowel Syndrome (IBS)

C الأدلة أدلة محدودة من دراسات صغيرة، غير أن ثمة بعض الإشارات الإيجابية.

Pilot RCTs suggest glutamine (5 g TID) reduces intestinal permeability and IBS-D symptoms in post-infectious IBS. Promising but needs larger trials.

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الخلاصة

Pilot RCTs suggest glutamine (5 g TID) reduces intestinal permeability and IBS-D symptoms in post-infectious IBS. Promising but needs larger trials.

Key Study Findings

Other
Unraveling the active ingredients and molecular mechanisms of Qinghua Changyan granule against irritable bowel syndrome …
Dose: None مقابل: None Outcome: IBS-D symptom relief via gut microbiota and glutamine … التأثير: None None

المجتمع المدروس: animal model of IBS with diarrhea

Other n=25 4 weeks
Effect of probiotic administration of Bifidobacterium animalis subsp. lactis BB-12 and Lactiplantibacillus plantarum ATCC 14917 …
Dose: Bifidobacterium animalis subsp. lactis BB-12 and Lactiplantibacillus plantarum ATCC 14917 مقابل: phosphate-buffered saline (PBS) Outcome: visceral hypersensitivity (abdominal withdrawal reflex scores) التأثير: None p<0.05

المجتمع المدروس: female rats with water avoidance stress-induced IBS-D model

Other n=62
[Study on activation mechanism of SGCs in representation along the distribution of stomach meridian in …
Dose: None مقابل: Control group (no citrobacter) Outcome: SGC activation in DRG segments التأثير: None P<0.05 to P<0.01

المجتمع المدروس: Male C57BL/6 mice (IBS-D model)

Review
Intestinal Barrier Impairment, Preservation, and Repair: An Update.
Dose: None مقابل: None Outcome: Intestinal barrier preservation and repair التأثير: None None

المجتمع المدروس: IBD and IBS patients (review)

Other
Multi-Omics Reveals the Effects of Cannabidiol on Gut Microbiota and Metabolic Phenotypes.
Dose: None مقابل: None Outcome: Cholesterol levels التأثير: None None

المجتمع المدروس: Mouse model

In Vitro
Effects of Glutamine, Curcumin and Fish Bioactive Peptides Alone or in Combination on Intestinal Permeability …
Dose: None مقابل: None Outcome: inflammation markers التأثير: None None

المجتمع المدروس: Mice

Key Statistics

2

الدراسات

150

المشاركون

↑

Positive

C

التقييم

Referenced Papers

Gut 2019 5 اقتباسات
Praxis 2018
Current opinion in … 2017 71 اقتباسات
Clinical nutrition (Edinburgh, … 2011 12 اقتباسات
Medycyna wieku rozwojowego 2004 1 اقتباسات

Dosage & Usage

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

الجرعات الشائعة

general:
5-15 g/day
ibsdsupport:
5 g three times daily (15 g/day total)
postexercisegut:
0.25-0.9 g/kg before intense exercise
gutbarriersupport:
0.5 g/kg/day (approximately 30-40 g/day for adults)

الحد الأعلى: Generally well-tolerated up to 0.5 g/kg/day; caution above 40 g/day

الجرعات المدروسة في الأبحاث

الجرعة المدة التأثير ن
None -- Positive --
Bifidobacterium animalis subsp. lactis BB-12 and Lactiplantibacillus plantarum ATCC 14917 4 weeks Positive 25
None -- Mixed 62
None -- Positive --
None -- Positive --
None -- Mixed --
None -- Mixed --
None -- Negative 75

أفضل وقت للتناول: Between meals or before exercise; divide doses throughout the day

Safety & Side Effects

الآثار الجانبية المُبلّغ عنها

  • ⚠ Mild gastrointestinal discomfort at high doses
  • ⚠ Headache
  • ⚠ Dizziness at very high doses
  • ⚠ Potential glutamate excitotoxicity concerns in neurological conditions (theoretical)

التفاعلات المعروفة

  • ● Lactulose (glutamine may reduce the efficacy of lactulose for hepatic encephalopathy)
  • ● Anti-seizure medications (glutamine converts to glutamate; theoretical concern)
  • ● Chemotherapy agents (glutamine may protect cancer cells; discuss with oncologist)

الحد الأقصى المسموح به: Generally well-tolerated up to 0.5 g/kg/day; caution above 40 g/day

استشر مقدم الرعاية الصحية دائماً قبل البدء بأي مكمل غذائي.

Frequently Asked Questions

Does L-Glutamine help with Irritable Bowel Syndrome (IBS)?
Based on 2 studies with 150 participants, there is limited but promising evidence that L-Glutamine may support Irritable Bowel Syndrome (IBS) management. Our evidence grade is C (Some Evidence).
How much L-Glutamine should I take for Irritable Bowel Syndrome (IBS)?
Studies have used various dosages. A commonly studied range is 5-15 g/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of L-Glutamine?
Reported side effects may include Mild gastrointestinal discomfort at high doses, Headache, Dizziness at very high doses, Potential glutamate excitotoxicity concerns in neurological conditions (theoretical). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for L-Glutamine and Irritable Bowel Syndrome (IBS)?
We rate the evidence as Grade C (Some Evidence). This rating is based on 2 peer-reviewed studies with 150 total participants. The overall direction of effect is positive.

References

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  2. [2] Nazila Dardmeh et al.. J Sci Food Agric. 2026. Effect of probiotic administration of Bifidobacterium animalis subsp. lactis BB-12 and Lactiplantibacillus plantarum ATCC 14917 on metabolic profiles in an … doi:10.1002/jsfa.70190 PubMed
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