amino acid
Glutamine supplements
Half of the 1,850 glutamine supplements in the NIH label database that print an amount list 1 g or less per serving; the middle half list 0.356 g to 3 g (DSLD version 9.4.0, January 2026). The 330 products whose only supplement ingredient is glutamine list a median of 4 g.
- Products listing it
- 2,9731,850 print an amount; 1,122 list it inside a blend without an amount
- Median per serving
- 1 gmiddle half 0.356 g to 3 g
How much glutamine do supplements contain?
The median product lists 1 g per serving. One in ten lists 0.1 g or less, one in ten 5 g or more. The amount printed most often is 5 g (241 products).
Products by amount of glutamine per serving
1,850 products, log scale; extreme 0.2% at each end left out of the drawing.
| Amount per serving | Products | For example |
|---|---|---|
| 5 g | 241 | Glutamine (Tapout Sports Nutrition); L-Glutamine Powder (GNC Pro Performance); RapidDrive Glutamine 5000 Fruit Punch (GNC Pro Performance) |
| 1 g | 192 | Recover Post Workout (Tapout Sports Nutrition); L-Glutamine (GNC Mega Men); Week Four: Repair (Douglas Laboratories) |
| 0.5 g | 189 | Fish Oil Sport (GNC Triple Strength); Muscle Support (Instaflex); Whey of Life Multi-Action Whey Protein Natural Chocolate Blitz Flavor (Bluebonnet) |
| 2.5 g | 153 | N'Gage Glacier Punch (Axis Labs); Competitive Mass (Lee Haney's Nutritional Support Systems); XTEND Lemon Lime Sour (Scivation) |
| 3 g | 105 | Lg5 Pro (All American EFX); RapidDrive Post-Workout Amino Complex Fruit Punch (GNC Pro Performance); Torch After-Burn Recovery Drink Creamy Vanilla Flavor (Market America) |
| 2 g | 94 | BC + EAA Blue Raspberry (LG Sciences); Shockwave Fruit Punch (Sci-Fit); Shockwave Grape (Sci-Fit) |
| 0.1 g | 58 | Ultra 5-HTP Formula (Douglas Laboratories); Ultimate-Plus (Ultra Plan); Nuclezyme-Forte (Biotics Research Corporation) |
| 0.15 g | 53 | Think Smart with Gingko Biloba (Whole Foods); Energy Enhancing Formula Refreshing Citrus (GNC Preventive Nutrition); Energy-Plex (DaVinci Laboratories Of Vermont) |
| 1.5 g | 50 | Gluta-Lyn 1500 (Sci-Fit); Gluta-Lyn 1500 Powder (Sci-Fit); Endura / PAK Guard Capsules (Perque) |
| 0.2 g | 43 | Ultra Minerals For Life (AB American Biologics); Complex-M with Ginkgo (Allergy Research Group); Advanced OKG 5000 (Healthy 'N Fit) |
Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).
Which products list the most glutamine?
On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).
- Hit BCAA 4:1:1 + Glutamine PeachDY Nutrition33.33 g
- Hit BCAA 4:1:1 + Glutamine StrawberryDY Nutrition33.33 g
- Amino 8:1:1+L-Glutamine Blue Raz FlavourPromuscle Products20.2 g
- Amplified Wheybolic Extreme 60 Ripped Chocolate Peanut ButterGNC Pro Performance AMP19.99 g
- 100% Casein Protein Cookies 'N CreamBody Attack Sports Nutrition18 g
- 100% Casein Protein Strawberry CreamBody Attack Sports Nutrition17.9 g
- 100% Casein Protein Strawberry Banana CreamBody Attack Sports Nutrition17.8 g
- BCAA Orange FlavourSCI-MX Nutrition15.3 g
Have the amounts changed over the years?
Products whose current label entered DSLD in 2011 list a median of 2.5 g; those entered in 2025, 1 g.
| Year | Products | Median per serving |
|---|---|---|
| 2011 | 37 | 2.5 g |
| 2012 | 91 | 1 g |
| 2013 | 136 | 0.5 g |
| 2014 | 117 | 1.5 g |
| 2015 | 110 | 2 g |
| 2016 | 112 | 2 g |
| 2017 | 121 | 2.5 g |
| 2018 | 115 | 2 g |
| 2019 | 63 | 1 g |
| 2020 | 170 | 2 g |
| 2021 | 134 | 0.97 g |
| 2022 | 146 | 1 g |
| 2023 | 168 | 1.5 g |
| 2024 | 176 | 1 g |
| 2025 | 154 | 1 g |
Source: DSLD label entry dates and amounts, current labels.
In which products and brands?
Products listing glutamine by DSLD product type
Brands listing it most: Core Nutritionals (37), NutraBio (32), Universal (28), Douglas Laboratories (26), GNC Pro Performance (21), GNC Pro Performance AMP (21), CytoSport (21), XTEND (20), Pure Encapsulations (17), MRM Nutrition (17).
Every product listing glutamine
2,973 products, A to Z by name (page 34 of 60), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- L-Glutamine 500 mgBronson0.5 g
- L-Glutamine 500 mgWonder Laboratories0.5 g
- L-Glutamine 500 mgWoodstock Vitamins0.5 g
- L-Glutamine 500 mgBest Naturals0.5 g
- L-Glutamine 500 mgMeijer0.5 g
- L-Glutamine 500 mgMetabolic Maintenance0.5 g
- L-Glutamine 500 mgBIOVEA0.5 g
- L-Glutamine 500 mgKlaire Labs · off the market0.5 g
- L-Glutamine 500 mgLuckyVitamin0.5 g
- L-Glutamine 500 mgSwiss BioEnergetics0.5 g
- L-Glutamine 500 mgPuritan's Pride2 g
- L-Glutamine 500 mgPure Encapsulations0.5 g
- L-Glutamine 500 mgSource Naturals0.5 g
- L-Glutamine 500 mgVitamin Discount Center · off the market0.5 g
- L-Glutamine 500 mgSwanson0.5 g
- L-Glutamine 500 mgNOW0.5 g
- L-Glutamine 500 mgLife Extension0.5 g
- L-Glutamine 500 mgBluebonnet0.5 g
- L-Glutamine 500 mgCountry Life0.5 g
- L-Glutamine 500 mgSolaray0.5 g
- L-Glutamine 5000 mgGNC Pro Performance5 g
- L-Glutamine 5000 mg UnflavoredMuscle Empirein a blend
- L-Glutamine 5000 mg UnflavoredGNC Pro Performance5 g
- L-Glutamine 5000 mg UnflavoredJacked Factory Essential Series5 g
- L-Glutamine 5000 with L-Alanine & N-Acetyl L-Glutamine5% Core5 g
- L-Glutamine 550 mgLidtke0.55 g
- L-Glutamine 750 mgCarlson0.75 g
- L-Glutamine 750 mgJarrow Formulas0.75 g
- L-Glutamine 800 mgNutriCology1.6 g
- L-Glutamine 800 mgNutricost0.8 g
- L-Glutamine 800 mgAllergy Research Group1.6 g
- L-Glutamine 850 mgPure Encapsulations0.85 g
- L-Glutamine Alpha-KetoglutaratePureBulk.com0.867 g
- L-Glutamine Amino Acid PowderCarlson · off the market3 g
- L-Glutamine Caps 500 mgCountry Life0.5 g
- L-Glutamine Capsules 5000 mgBulkSupplements.com5 g
- L-Glutamine Chew Delicious GrapeGNC Pro Performance2.5 g
- L-Glutamine Crystalline Amino Acid 500 MilligramsEcological Formulas0.5 g
- L-Glutamine PlusNutri-West0.5 g
- L-Glutamine PowderGNC Pro Performance5 g
- L-Glutamine PowderVitaCeutical Labs · off the market1 g
- L-Glutamine PowderMartin Avenue Pharmacy4.5 g
- L-Glutamine PowderBiotics Research Corporation3 g
- L-Glutamine PowderDesigns for Health3 g
- L-Glutamine PowderMET-Rx · off the market6 g
- L-Glutamine PowderThorne Research · off the market5 g
- L-Glutamine PowderAllergy Research Group · off the market4.7 g
- L-Glutamine PowderNutriCology · off the market4.7 g
- L-Glutamine PowderSeeking Health5 g
- L-Glutamine PowderDaVinci Laboratories Of Vermont · off the market5 g