glutamine
Glutamine is the most abundant free amino acid in the human body, serving as a critical fuel source for immune cells and enterocytes in the digestive tract. While categorized as a non-essential amino acid, it becomes 'conditionally essential' during periods of metabolic stress, such as intense exercise, injury, or illness, where demand exceeds the body's synthesis capacity.
Lab Notes — Research Studies
01 Glutamine in Burn Injury
Clinical data indicates that glutamine supplementation in burn patients significantly reduces mortality, hospital stay length, and occurrences of gram-negative bacteremia by preserving gut barrier function.
View Study ((PubMed))02 Glutamine: a potentially useful supplement for athletes
This review suggests that exogenous glutamine may help maintain muscle protein mass and support immune function in athletes undergoing heavy exercise training.
View Study ((PubMed))03 Impact of oral nutritional supplement composition on healing of different chronic wounds: A systematic review
The study found that hyperproteic oral formulas containing glutamine and other nutrients can reduce wound area and increase healing rates in patients with pressure injuries and diabetic foot ulcers.
View Study ((PubMed))04 Randomised placebo-controlled trial of dietary glutamine supplements for postinfectious irritable bowel syndrome
Oral glutamine supplementation was shown to safely and effectively reduce symptoms in patients suffering from post-infectious irritable bowel syndrome.
View Study ((PubMed))05 The effect of glutamine supplementation on athletic performance, body composition, and immune function: A systematic review and a meta-analysis of clinical trials
A comprehensive meta-analysis found that glutamine supplementation reduces muscle soreness and improves recovery following intense exercise, though its effect on performance metrics is variable.
View Study ((PubMed))Formula — Benefits & Dosage
⚗️ Effects
- Gastrointestinal Relief: Highly effective for post-infectious IBS and general gut permeability issues.
- Metabolic Stress: Most effective when the body is under high stress, such as post-surgery or during heavy training.
- Performance Gains: While excellent for recovery, it shows limited direct impact on increasing maximum strength or speed.
- Clinical Utility: Proven effectiveness in accelerating the healing of chronic wounds and burns.
💉 Dosage & Administration
- Standard Daily Dose: Common reported dosages for gut health range from 5g to 15g daily, often split into multiple doses.
- High Stress/Clinical: Dosages in clinical burn studies or for severe gut repairs can exceed 20g-30g per day under supervision.
- Timing: Best taken on an empty stomach or immediately following a workout for optimal absorption.
⚠️ Side Effects
- Digestive Upset: Excessive doses can occasionally lead to constipation or mild bloating in sensitive individuals.
- Neurological Sensitivity: Rare reports of increased anxiety or 'brain fog' in individuals sensitive to glutamate conversion.
- Water Retention: Some users report a minor increase in intramuscular water retention.
📦 Availability & Sourcing
- Over the Counter: Readily available as an inexpensive powder or capsule at most health food stores and pharmacies.
- Purity: Widely available in fermented (vegan) or synthetic forms with high levels of purity (L-Glutamine).
Reaction Log — User Experiences
Users overwhelmingly report positive results for gut health and recovery from intense exercise, with many considering it a staple for managing IBS symptoms and 'leaky gut'.
Synthesis — Related Compounds
⚠️ IMPORTANT DISCLAIMER
This information is for educational and research purposes only. glutamine may not be approved for human use. Always consult a qualified healthcare professional before using any supplements or research compounds. We do not guarantee accuracy or completeness of information presented.