20 Best L Glutamine 500mg Capsules [2024]

Are you looking for the best L Glutamine 500mg Capsules? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling L Glutamine 500mg Capsules.

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1 NOW Supplements, L-Glutamine 500 mg, Nitrogen Transporter*, Amino Acid, 120 Veg Capsules NOW Supplements, L-Glutamine 500 mg, Nitrogen Transporter*, Amino Acid, 120 Veg Capsules
2 Now L-Glutamine 500 mg, 300 Vegan Capsules - Non-GMO, Vegan, Kosher Now L-Glutamine 500 mg, 300 Vegan Capsules - Non-GMO, Vegan, Kosher
3 Life Extension L-Glutamine 500mg - For Muscle, Energy, Gut & Immune Health Support - Amino Acid... Life Extension L-Glutamine 500mg - For Muscle, Energy, Gut & Immune Health Support - Amino Acid...
4 Pure Encapsulations L-Glutamine 500 mg | Supplement for Immune and Digestive Support, Gut Health and... Pure Encapsulations L-Glutamine 500 mg | Supplement for Immune and Digestive Support, Gut Health...
5 Swanson Amino Acid L-Glutamine 500 Milligrams 100 Capsules Swanson Amino Acid L-Glutamine 500 Milligrams 100 Capsules
6 Solgar L-Glutamine 500 mg, 250 Vegetable Capsules - Natural Muscle Food - Promotes Gastrointestinal... Solgar L-Glutamine 500 mg, 250 Vegetable Capsules - Natural Muscle Food - Promotes...
7 Bluebonnet Nutrition L-Glutamine 500mg, Supports Immune Function*, Nitrogen Transporter*, Soy-Free,... Bluebonnet Nutrition L-Glutamine 500mg, Supports Immune Function*, Nitrogen Transporter*,...
8 Amazing Formulas L-Glutamine 500 Mg 120 Capsules Amazing Formulas L-Glutamine 500 Mg 120 Capsules
9 Best Naturals L-Glutamine 500 mg 250 Tablets Best Naturals L-Glutamine 500 mg 250 Tablets
10 Swanson Amino Acid L-Glutamine 500 Milligrams 200 Capsules 2 Bottles Swanson Amino Acid L-Glutamine 500 Milligrams 200 Capsules 2 Bottles
11 Now L-Glutamine 500 mg, 300 Vegan Capsules (Pack of 2) Now L-Glutamine 500 mg, 300 Vegan Capsules (Pack of 2)
12 Solgar – L-Glutamine 500 mg, 100 Vegetable Capsules Solgar – L-Glutamine 500 mg, 100 Vegetable Capsules
13 Klaire Labs L Glutamine Capsules - 500 Milligrams Hypoallergenic Amino Acids Supplement - Supports... Klaire Labs L Glutamine Capsules - 500 Milligrams Hypoallergenic Amino Acids Supplement -...
14 Douglas Laboratories - L-Glutamine - Supports Structure and Function of The Gastrointestinal (GI)... Douglas Laboratories - L-Glutamine - Supports Structure and Function of The Gastrointestinal (GI)...
15 Country Life L-Glutamine Caps - 500 mg with Vitamin B6-100 Vegan Capsules - May Help Aid in Muscle... Country Life L-Glutamine Caps - 500 mg with Vitamin B6-100 Vegan Capsules - May Help Aid in...
16 L-Glutamine 500mg 120C L-Glutamine 500mg 120C
17 L-Glutamine 500mg per Capsule (240 Capsules) - No Dicalcium Phosphate - No Stearates - Non GMO -... L-Glutamine 500mg per Capsule (240 Capsules) - No Dicalcium Phosphate - No Stearates - Non GMO -...
18 100% Pure L-Glutamine, 365 Capsules, 6-Month Supply, No Magnesium or Rice Filler, Non-GMO,... 100% Pure L-Glutamine, 365 Capsules, 6-Month Supply, No Magnesium or Rice Filler, Non-GMO,...
19 Thorne L-Glutamine - Amino Acid Supplement for GI Health and Immune Function - 90 Capsules Thorne L-Glutamine - Amino Acid Supplement for GI Health and Immune Function - 90 Capsules
20 Best Naturals L-Glutamine 1000mg Fuel for Workout (Non-GMO) Tablets, 180 Count Best Naturals L-Glutamine 1000mg Fuel for Workout (Non-GMO) Tablets, 180 Count
SaleBestseller No. 1
NOW Supplements, L-Glutamine 500 mg, Nitrogen Transporter*, Amino Acid, 120 Veg Capsules
  • Amino acid/supports immune function: Glutamine is considered to be a conditionally essential amino acid, which means that under certain circumstances,...
  • Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product...
  • Nitrogen transporter: In the body, glutamine functions as a major nitrogen transporter and is critical for the maintenance of healthy nitrogen...
  • Classifications/certifications: Halal, non-gmo, kosher, dairy free, egg free, made without gluten, nut free, soy free, vegan/vegetarian
  • GMP quality assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our...
Bestseller No. 2
Now L-Glutamine 500 mg, 300 Vegan Capsules - Non-GMO, Vegan, Kosher
  • ✅ FREE FORM L-GLUTAMINE: NOW Brand's new value size of this premium amino acid supplement.
  • ✅ EASY TO TAKE ON THE GO: No need to mix any powder. Easy to take these capsules when at the gym or at work.
  • ✅ BENEFITS FOR MEN AND WOMEN: Glutamin supports immune function* & nitrogen transporter*. Benefits gut health*.
  • ✅ BETTER FOR YOU: Non-GMO, Vegetarian/Vegan. Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced...
SaleBestseller No. 3
Life Extension L-Glutamine 500mg - For Muscle, Energy, Gut & Immune Health Support - Amino Acid...
  • FUEL YOUR ACTIVE LIFESTYLE – Glutamine is an amino acid your body uses for protein production. While it’s a must-have among serious athletes,...
  • GUT HEALTHY, IMMUNE STRONG – Glutamine can be found in the blood, as well as stored in the skeletal muscles and liver, and in higher concentrations...
  • ANTIOXIDANT SUPPORT - Regular body movement is terrific for whole-body health. But engaging in heavy exercise can affect glutamine levels, causing...
  • INGREDIENTS MATTER - Sourced using only the finest raw ingredients with the purity and potency your body deserves. This product is certified non-GMO...
  • LIVE YOUR HEALTHIEST LIFE - For over 40 years, we’ve been developing advanced, effective formulas made with the highest standards and based on the...
Bestseller No. 4
Pure Encapsulations L-Glutamine 500 mg | Supplement for Immune and Digestive Support, Gut Health and...
  • Gastrointestinal Health: l-Glutamine nutritionally supports the mucosal lining and healthy functioning of the gastrointestinal tract.*
  • Supports Lean Muscle: l-Glutamine also helps promote and preserve lean muscle mass.*
  • Amino Acid: l-Glutamine is the most abundant amino acid in the body. In times of metabolic stress, glutamine is utilized by the body for tissue repair...
  • Pure Quality: Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then...
  • Pure Difference: What makes us different isn't just our process or what goes into our supplements -- what we leave out matters, too. Pure...
Bestseller No. 5
Swanson Amino Acid L-Glutamine 500 Milligrams 100 Capsules
  • Supports muscle growth and recovery, digestive health and provides fuel for activity

  • An effective brain fuel that helps to maintain healthy cognitive function

  • High-quality ingredient, tested for purity and potency according to international standards

  • Per GMP guidelines set forth by the FDA, most products are formulated for 24 months from the date of manufacture. Liquids and probiotics are...
Bestseller No. 6
Solgar L-Glutamine 500 mg, 250 Vegetable Capsules - Natural Muscle Food - Promotes Gastrointestinal...
  • Natural Muscle Food; L-Glutamine comprises nearly 60% of the body's total amino acid muscle pool; It regulates nitrogen transport to and from muscle...
  • GI & Brain Health; L-Glutamine is a major fuel source for intestinal, immune, and brain cells
  • Optimal Absorption; This formulation provides free form L-Glutamine to promote optimal absorption and assimilation
  • Gluten, Wheat & Dairy Free; Solgar L-Glutamine is non-GMO, vegan, kosher, and free of: gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial...
  • The Gold Standard: For over 70 years, Solgar has been committed to quality, health, and well-being. Our mission is to create the finest nutritional...
Bestseller No. 7
Bluebonnet Nutrition L-Glutamine 500mg, Supports Immune Function*, Nitrogen Transporter*, Soy-Free,...
  • Contains 500 mg of free-form L-Glutamine in its crystalline form, AjiPure Amino Acid, from Ajinomoto - World Leading Supplier of Amino Acids
  • Supports Immune Function ♦ Nitrogen Transporter ♦
  • 100 Vegetable Capsules, 100 Servings
  • Soy-Free, Gluten-Free, Non-GMO, Kosher Certified, Vegan
  • Free of milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat and soybeans. Also free of corn, yeast, gluten, barley, rice, sodium and...
Bestseller No. 8
Amazing Formulas L-Glutamine 500 Mg 120 Capsules
  • Glutamine is distributed by the blood to the organs that need it. Glutamine is key for muscle health, it also supports gut function, the immune...
  • It is also important for providing "fuel" (nitrogen and carbon) to many different cells in the body. Glutamine is needed to make other amino acids in...
  • Ingredients: L-Glutamine
  • Item Package Dimension: 5.334cm L x 5.842cm W x 11.176cm H
Bestseller No. 9
Best Naturals L-Glutamine 500 mg 250 Tablets
  • Glutamine supplememt supports immune function & muscle mass.
  • L Glutamine is an important sports-related nutrient -- supports a healthy nervous system
  • No Artificial Color, Flavor or Sweetener, No Preservatives, No Sugar, No Starch, No Corn, No Soy, No Egg, No Lactose, No Gluten, No Wheat, No Yeast,...
  • Glutamine 500 mg per tablet - 250 Glutamine tablets per bottle.
  • TOP QUALITY GMP CERTIFIED PRODUCTS.
Bestseller No. 10
Swanson Amino Acid L-Glutamine 500 Milligrams 200 Capsules 2 Bottles
  • Keeps your mind sharp and keen

  • Helps fuel your muscles

  • Has a unique ability to pass through the blood/brain barrier, making it an excellent promoter of healthy mental function

  • Per GMP guidelines set forth by the FDA, most products are formulated for 24 months from the date of manufacture. Liquids and probiotics are...
Bestseller No. 11
Now L-Glutamine 500 mg, 300 Vegan Capsules (Pack of 2)
  • ✅ 2 BOTTLES OF FREE FORM L-GLUTAMINE: NOW Brand's premium amino acid supplement.
  • ✅ EASY TO TAKE ON THE GO: No need to mix any powder. Easy to take these capsules when at the gym or at work.
  • ✅ FOR MEN AND WOMEN: Glutamin supports immune function*, nitrogen transporter*, and gut health*.
  • ✅ BETTER FOR YOU: Non-GMO, Vegetarian/Vegan. Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced...
SaleBestseller No. 12
Solgar – L-Glutamine 500 mg, 100 Vegetable Capsules
  • MAJOR FUEL SOURCE: Naturally sourced L-Glutamine is a major fuel source for immune, intestinal and brain cells. In addition to that, nearly 60% of the...
  • TRANSPORT REGULATION: Besides being a major fuel source for several types of cells in the body, L-Glutamine also regulates nitrogen transport both to...
  • OPTIMAL ABSORPTION: This formulation provides Free Form L-Glutamine to promote optimal assimilation and absorption
  • KOSHER, GLUTEN FREE & SUITABLE FOR VEGETARIANS: These vegetable capsules are KOF-K Kosher certified, are non-GMO and are certified gluten free. They...
Bestseller No. 13
Klaire Labs L Glutamine Capsules - 500 Milligrams Hypoallergenic Amino Acids Supplement - Supports...
  • Hypoallergenic* formula with 500 mg of L-Glutamine per vegetarian capsule.
  • Key for muscle and GI function.*
  • L-glutamine is a conditionally essential amino acid and primary energy source for intestinal cells. It is also a major amino acid in muscle tissue.
  • Free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, soybeans, corn, and yeast. Contains no...
  • Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by...
Bestseller No. 14
Douglas Laboratories - L-Glutamine - Supports Structure and Function of The Gastrointestinal (GI)...
  • Immune Health: The amino acid glutamine plays a key role in the metabolism, structure, and function of the entire healthy gastrointestinal (GI) tract...
  • Gastrointestinal Support: Many clinical studies support that dietary and endogenous glutamine is crucial in maintaining normal function of the entire...
  • Vitamins/Minerals/Amino Acids: Our vitamins/minerals and amino acid formulas are developed to provide beneficial support in filling nutrient gaps.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of...
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the...
Bestseller No. 15
Country Life L-Glutamine Caps - 500 mg with Vitamin B6-100 Vegan Capsules - May Help Aid in Muscle...
  • HELPS DETOXIFY - L-glutamines main roles in the body is to support detoxification by cleansing the body from high levels of ammonia. It acts as a...
Bestseller No. 16
Bestseller No. 17
L-Glutamine 500mg per Capsule (240 Capsules) - No Dicalcium Phosphate - No Stearates - Non GMO -...
  • Bestvite’s Pharmaceutical Grade L-Glutamine is provided in L-Form for better biological effect.
  • L-Glutamine is the most abundant amino acid in the body and is involved in many metabolic processes. L-Glutamine protects muscle tissue, supports...
  • In the body, glutamine functions as a major nitrogen transporter and is critical for the maintenance of healthy nitrogen balance.
  • All Bestvite products are manufactured in the USA according to GMP. Raw materials used for L-Glutamine and all batches of finished products are...
  • NSF GMP CERTIFIED: Bestvite’s facility is NSF/ANSI 455-2 Dietary Supplements Good Manufacturing Practice (GMP) certified. Earning GMP certification...
Bestseller No. 18
100% Pure L-Glutamine, 365 Capsules, 6-Month Supply, No Magnesium or Rice Filler, Non-GMO,...
  • PURE L-GLUTAMINE CAPSULES Naturally Build Muscle Mass and Support Gastrointestinal & Digestive Health*
  • 365 CAPSULES: 6-Month Supply. More Than Other Top Sellers. (Seriously, check out their labels)
  • NO STEARATES OR RICE FILLERS Unlike our Competition, We Don’t Use Fillers
  • MADE IN THE USA by a Bunch of Health Fanatics in Utah. Non-GMO & Gluten-Free
  • LOVE IT OR IT’S FREE! We offer a HASSLE-FREE, 100% MONEY BACK GUARANTEE. Buy & Try with confidence
Bestseller No. 19
Thorne L-Glutamine - Amino Acid Supplement for GI Health and Immune Function - 90 Capsules
  • GI/Immunity: Promotes GI and healthy immune function*
  • Wound Healing: Nutritional support for wound and burn healing*
  • Nerves: Supports a healthy nervous system*
  • Muscles: Promotes muscle recovery after exercise or injury*
  • Free From: Every Thorne product is made with the purest possible ingredients - without gluten or other major allergens (eggs, tree nuts, peanuts) This...
Bestseller No. 20
Best Naturals L-Glutamine 1000mg Fuel for Workout (Non-GMO) Tablets, 180 Count
  • Glutamine supplement supports immune Function & muscle mass
  • L glutamine is an important sports-related nutrient -- Supports a healthy nervous system
  • No Artificial Color, Flavor or Sweetener, No Preservatives, No Sugar, No Starch, No Corn, No Soy, No Egg, No Lactose, No Gluten, No Wheat, No Yeast,...
  • Glutamine 1000 mg per tablet - 180 glutamine tablets per bottle
  • Top QUALITY GMP CERTIFIED PRODUCTS - All Best Naturals products are manufactured in accordance with Good Manufacturing Practices (GMP), among the...

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FAQ:

Q: How to take L glutamine?

A: Always take glutamine with cold or room temperature liquids or foods. Never add glutamine to hot beverages because heat destroys glutamine. Individuals with liver disease, kidney disease or Reye’s syndrome should not take glutamine.

Q: When should I take glutamine supplements?

A: • You can take glutamine every day, after waking, before training, after training, before going to bed and between meals, preferably on a empty stomach, since glutamine is sensitive to stomach (and other) acids, as well as to heat. There’s no need to cut back or cycle in glutamine.

Q: Where to buy L glutamine?

A: L-glutamine is readily found online or in health food stores, pharmacies, and shops specializing in dietary supplements. The supplements are most commonly sold in capsule or powder forms. 3 

Q: How much glutamine can you take daily?

A: When taken by mouth: Glutamine is LIKELY SAFE for most adults when taken by mouth in doses up to 40 grams daily. Side effects are generally mild and may include dizziness, heartburn, and stomach pain. Some people find the grittiness of glutamine in water to be unpleasant when taken by mouth.