L-Glutamine

Suggested Use

Suggested Use: 1/4 to 1/2 teaspoon daily between meals.

• 

  L-Glutamine Source Naturals

  iHerb4.7(383)

  $10.72
• 

  Source Naturals, Inc. Glutamine Comfort Powder

  PureFormulas.com5.0(1)

  $18.19
• 

  L Arginine Source Naturals

  iHerb4.7(222)

  $9.74
• 

  Source Naturals, L-Glutamine, 500 Mg, 50 Tablets

  Maple Herbs4.7(383)

  $35.26
• 

  Best Naturals L-Glutamine mg

  Target4.5(25)

  $14.99
• 

  L-Glutamine Powder

  SeeBeyond

  $55.00
• 

  Source Naturals L Leucine

  iHerb4.8(136)

  $27.49
• 

  Source Naturals Amino Athlete 1000 mg 100 Tablet

  PureFormulas.com4.8(120)

  $10.15

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

• Popeye's Supplements

  4.9 (644)

  Vitamin & supplements store

  2419 Yonge St, Toronto, ON M4P 2E6, Canada

  Directions+1 647-352-6533

• OurWellness

  4.5 (43)

  Vitamin & supplements store

  2465 Yonge St, Toronto, ON M4P 2H6, Canada

  Directions+1 416-932-9002

• Goodie Vibes

  4.9 (119)

  Vitamin & supplements store

  By appointment only, 264 Queen St W, Toronto, ON M5V 0L2, Canada

  Directions

• SNS Health - Store

  4.8 (959)

  Vitamin & supplements store

  2280 Bovaird Dr E Unit 7, Brampton, ON L6R 3J5, Canada

  Directions+1 905-792-8990

• Popeye's Supplements

  4.7 (915)

  Vitamin & supplements store

  115 Yonge St, Toronto, ON M5C 1W4, Canada

  Directions+1 416-594-9797

• Popeye's Supplements

  4.9 (1065)

  Vitamin & supplements store

  3350 Dufferin St, North York, ON M6A 3A4, Canada

  Directions+1 416-783-5100

• Popeye's Supplements

  4.8 (629)

  Vitamin & supplements store

  659 Yonge St, Toronto, ON M4Y 1Z9, Canada

  Directions+1 416-924-5050

• Popeye's Supplements

  4.9 (1127)

  Vitamin & supplements store

  6365 Yonge St, North York, ON M2M 3X8, Canada

  Directions+1 647-352-5933

• Glutamine as an immunonutrient

  H Kim - Yonsei medical journal, 2011 - synapse.koreamed.org

  … Both L-Glutamine and L-alanyl-L-glutamine prevented oxidant- or … containing L-alanyl-L-glutamine had lower mortality rates … L-glutamine use in the treatment and prevention of mucositis …

  2011184 citations

• Glutamine and cancer: metabolism, immune microenvironment, and therapeutic targets

  D Nan, W Yao, L Huang, R Liu, X Chen, W Xia… - Cell Communication and …, 2025 - Springer

  … unique metabolism of glutamine in cancer cells, its function in various immune cells, the impact of inhibitors of glutamine metabolism, and the therapeutic use of glutamine supplements …

  2025103 citations

• Effect of glutamine supplementation on changes in the immune system induced by repeated exercise

  T Rohde, D MacLEAN, BK Pedersen - Medicine & Science in Sports & …, 1998 - ovid.com

  … The purpose of this study was to examine the influence of glutamine supplementation on … In a randomized cross-over placebo-controlled study, eight healthy male subjects performed …

  1998202 citations

• The physiological basis and nutritional function of alpha-ketoglutarate

  L He, Z Xu, K Yao, G Wu, Y Yin… - Current Protein and …, 2015 - benthamdirect.com

  … AKG is also the main source of energy for cells of the … and maintaining the microbial flora in the healthy state [41]. Through … supplementation influences motor activity in healthy rats. Clin…

  201582 citations

• Gastrointestinal Tolerance of Low, Medium and High Dose Acute Oral l-Glutamine Supplementation in Healthy Adults: A Pilot Study

  HB Ogden, RB Child, JL Fallowfield, SK Delves… - Nutrients, 2020 - mdpi.com

  … l-Glutamine (GLN) is a conditionally essential amino acid which supports gastrointestinal (GI) and immune function prior to catabolic stress (eg, strenuous exercise). Despite potential …

  202013 citations

• DXM, CYP2D6-inhibiting antidepressants, piracetam, and glutamine: proposing a ketamine-class antidepressant regimen with existing drugs

  N Cheung - Frontiers in Psychiatry, 2026 - frontiersin.org

  … CYP2D6 inhibitor (fluoxetine, paroxetine, or high-dose duloxetine) to prolong DXM exposure; (3) piracetam as an AMPA positive allosteric modulator; and (4) micronized L-glutamine to …

  202630 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-08-23. DSLD Label ID: 272400. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.