What is Glutamine?

Glutamine is one of the conditionally essential amino acids. Under normal circumstances, the body makes enough. In certain instances, such as a critical illness, the body's requirement exceeds its production capability. In these times, the body needs an external (dietary/supplement) source, to meet its needs. Read More

Table of Contents

  1. Articles
  2. Simple Report
  3. Detailed Report
  4. Overall Effectiveness Rating
  5. Research Rating
  6. Products Containing Glutamine
  7. Claim Ratings
  8. References


Glutamine Simple Report

  • Supplement: Glutamine
  • Supplement Category: conditionally essential amino acids
  • Number of Products Containing Glutamine: 78
  • Effectiveness Rating: 1.9 out of 3
  • Research Rating: 32 (above 80 indicates sufficient research)
  • Number of Studies: 12
  • Number of Claims: 19

Glutamine Detailed Report

Overall Effectiveness Rating

The overall effectiveness rating for glutamine is 1.9 out of 3. This rating means the evidence is mixed on the supplement's ability to deliver positive results. While some of the research supports its use, other evidence does not. Using this supplement may lead to positive results. Note, this effectiveness rating is for glutamine as a whole; there are also individual ratings for the claims below.

Read more: What is the effectiveness rating?

Research Rating for Glutamine

There are 12 studies in the database on glutamine; the research rating is 32. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating. Note, this research rating is for glutamine as a whole; there are also individual ratings for the claims below.

Read more: What is the research rating?

Products Containing Glutamine

Products Names Amount of Glutamine
Intra-Amino BCAA 2g
Locked and Loaded Amino Acids 2.5g
Rapid Recovery Amount not listed.
Pure Rebuild 5g
619 Labs Pre-Workout 500mg
Full list of all 78 products containing Glutamine.

Claim Ratings

The overall ratings above are an average of the individual claim ratings below. Individual claims may have higher or lower ratings compared to the supplement's overall rating. For example, some supplements may have excellent backing for one claim, but be completely useless for another. Click on a claim below for more information.

Body Composition (weight, muscle, body fat) Claims Effectiveness Rating Research Rating
decrease body fat
increase muscle mass
increase weight loss

Protein Synthesis Claims Effectiveness Rating Research Rating
decrease protein breakdown

Performance Claims Effectiveness Rating Research Rating
improve cardiovascular endurance
improve high-intensity interval training (HIIT) performance
increase strength
improve cycling sprint performance

Immune Health Claims Effectiveness Rating Research Rating
improve immune function

Cardiovascular Health Claims Effectiveness Rating Research Rating
lower blood pressure
lower LDL (bad) cholesterol levels
increase HDL (good) cholesterol levels
lower total cholesterol levels
lower triglyceride levels

Recovery Claims Effectiveness Rating Research Rating
improve recovery
reduce muscle damage
reduce muscle soreness

General Health Claims Effectiveness Rating Research Rating
improve insulin sensitivity
lower fasting glucose


Title of Study
Acute Glutamine Supplementation Does not Affect Muscle Damage Profile after Resistance Training
Effect of glutamine supplementation combined with resistance training in young adults
Effect of glutamine supplementation on cardiovascular risk factors in patients with type 2 diabetes
Effect of L-Glutamine Supplementation on Electromyographic Activity of the Quadriceps Muscle Injured By Eccentric Exercise
Glutamine Supplementation in Recovery From Eccentric Exercise Attenuates Strength Loss and Muscle Soreness
Is Long Term Creatine and Glutamine Supplementation Effective in Enhancing Physical Performance of Military Police Officers?
L-glutamine supplementation: Effects on endurance, power and recovery
Surface Electromyography Assessments of the Vastus medialis and Rectus femoris Muscles and Creatine Kinase after Eccentric Contraction Following Glutamine Supplementation
The Effect of Acute Glutamine Supplementation on Markers of Inflammation and Fatigue During Consecutive Days of Simulated Wildland Firefighting
The effects of glutamine supplementation on performance and hormonal responses in non- athlete male students during eight week resistance training
The effects of oral glutamine supplementation on athletes after prolonged, exhaustive exercise
The Influence of Oral L-Glutamine Supplementation on Muscle Strength Recovery and Soreness Following Unilateral Knee Extension Eccentric Exercise