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L-Glutamine 用于 Crohn's Disease

C

Small RCTs show glutamine (0.5 g/kg/day) improves intestinal permeability and morphology in Crohn's patients. Evidence limited by small sample sizes.

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C

结论

Small RCTs show glutamine (0.5 g/kg/day) improves intestinal permeability and morphology in Crohn's patients. Evidence limited by small sample sizes.

Key Study Findings

Other
Multiomics reveals microbial metabolites as key actors in intestinal fibrosis in Crohn's disease.
Dose: None vs: None Outcome: Gut microbiota composition 效果: None None

研究人群: Crohn's disease patients

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

研究人群: Mouse model

Controlled Clinical Trial
Washed microbiota transplantation for Crohn's disease: A metagenomic, metatranscriptomic, and metabolomic-based study.
Dose: Washed microbiota transplantation (WMT) vs: Pre-treatment baseline Outcome: Clinical remission and multi-omics changes 效果: None None

研究人群: Patients with Crohn's disease

In Vitro
Constitutively active autophagy in macrophages dampens inflammation through metabolic and post-transcriptional regulation of cytokine production.
Dose: Beclin1 constitutive activation (genetic) vs: Wild-type mice Outcome: Cytokine production in macrophage activation 效果: None None

研究人群: Beclin1 variant mice + AIEC infection

Observational Study n=262
Gut Microbiome-Generated Phenylacetylglutamine from Dietary Protein is Associated with Crohn's Disease and Exacerbates Colitis in …
Dose: Phenylacetylglutamine (PAGln, measured) vs: Healthy controls (n=126) Outcome: PAGln association with CD and colitis 效果: None None

研究人群: New-onset treatment-naive CD (n=136) + controls

Observational Study
COMPLEMENTARY AND ALTERNATIVE MEDICINE USE IN BRAZILIAN PATIENTS WITH INFLAMMATORY BOWEL DISEASE.
Dose: None vs: None Outcome: CAM use patterns in IBD patients 效果: None None

研究人群: Brazilian IBD patients

Key Statistics

3

研究数量

200

受试者

Positive

C

等级

Referenced Papers

Sheng wu gong … 2022 4 次引用
The Cochrane database … 2018 425 次引用
Gastroenterology clinics of … 2018 67 次引用
Current opinion in … 2017 37 次引用
The Cochrane database … 2016 37 次引用
Inflammatory bowel diseases 2010 89 次引用
The Cochrane database … 2007 192 次引用
Current opinion in … 2005 22 次引用
Clinical nutrition (Edinburgh, … 2004 18 次引用
Alimentary pharmacology & … 2003 179 次引用
Revista do Hospital … 2002 39 次引用
Current opinion in … 2002 1 次引用
Current opinion in … 2002
The Cochrane database … 2001 149 次引用
Current opinion in … 2000 21 次引用
Diseases of the … 1998 26 次引用
Zeitschrift fur Gastroenterologie 1998 18 次引用
Schweizerische medizinische Wochenschrift. … 1996

Dosage & Usage

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

常用剂量

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)

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

研究中使用的剂量

剂量 持续时间 效果 N
None -- Positive --
None -- Positive --
Washed microbiota transplantation (WMT) -- Positive --
Beclin1 constitutive activation (genetic) -- Positive --
Phenylacetylglutamine (PAGln, measured) -- Negative 262
None -- Mixed --
None -- Negative --
None -- Mixed --

最佳服用时间: Between meals or before exercise; divide doses throughout the day

Safety & Side Effects

已报告的副作用

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

已知相互作用

  • 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)

可耐受最高摄入量: Generally well-tolerated up to 0.5 g/kg/day; caution above 40 g/day

在开始服用任何补充剂之前,请务必咨询您的医疗保健提供者。

Frequently Asked Questions

Does L-Glutamine help with Crohn's Disease?
Based on 3 studies with 200 participants, there is limited but promising evidence that L-Glutamine may support Crohn's Disease management. Our evidence grade is C (Some Evidence).
How much L-Glutamine should I take for Crohn's Disease?
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 Crohn's Disease?
We rate the evidence as Grade C (Some Evidence). This rating is based on 3 peer-reviewed studies with 200 total participants. The overall direction of effect is positive.

Related Evidence

FDA 免责声明: 这些声明未经美国食品药品监督管理局(FDA)评估。本网站上的产品和信息无意用于诊断、治疗、治愈或预防任何疾病。所展示的证据等级基于我们对已发表的同行评审研究的分析,不构成医疗建议。在开始任何补充剂方案之前,请务必咨询您的医疗保健提供者。