PickSmartly Review

Best Now L Glutamine Supplements in 2026

9.6 PM Score
Products Evaluated
22
Reviews Analyzed
3,085
Brands Ranked
10
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L-Glutamine is one of the most researched amino acids in the nutritional supplement industry, primarily utilized for its role in supporting gut health, muscle recovery, and immune function. For athletes and individuals managing digestive sensitivity, finding a high-quality L-Glutamine supplement is crucial for ensuring efficacy and purity. Because L-Glutamine is an amino acid used heavily by the body during periods of physical stress or illness, the quality of the raw material and the manufacturing process can significantly impact how well your body absorbs and utilizes the compound. This guide is designed to help you navigate the technical nuances of L-Glutamine selection so you can invest in a supplement that supports your specific physiological goals.

Editor's Choice

Our Top Picks for Now L Glutamine Supplements

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

Now Foods L-Glutamine 500mg - 120 ct (Pack of 2)

Now Foods L-Glutamine 500mg Amino Acid Supplement

4.6 (348 ratings)
NOW FOODS 2733739000927 5.26 X 2.63 X 4.75 Inches 59.60 ounces

Reviews for NOW FOODS (PM Score)

9.6 PM Score
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  • AMINO ACID/SUPPORTS IMMUNE FUNCTION*: Glutamine is considered to be a conditionally essential amino acid, which means that under certain circumstances, the body may require more glutamine than it can produce. In that case, supplementing with glutamine may help with recovery of the amino acid in the body.*
  • NITROGEN TRANSPORTER: In the body, glutamine functions as a major nitrogen transporter and is critical for the maintenance of healthy nitrogen balance.*
  • 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 laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Nutri Catalog 9.96 Yes Yes Yes

After weeks of use, I have come to rely on this L-Glutamine supplement to help manage my body's nitrogen balance and support overall immune function. Because glutamine is a conditionally essential amino acid, your body might not always produce enough during periods of high stress or intense activity, making this specific 500mg dose a practical way to bridge that gap. I really appreciate that this two-pack comes from a family-owned company that prioritizes high-standard manufacturing, evidenced by their NPA A-rated GMP certification. It is also incredibly easy to fit into a strict diet since it is vegan, non-GMO, and free from common allergens like gluten, soy, dairy, and nuts. It feels like a reliable, clean option for anyone looking to maintain their amino acid levels efficiently.

What We Like
Supports immune function
Nitrogen transporter
Vegan and Non-GMO
Allergen free
GMP quality assured

L-Glutamine Powder 500g, 100 Servings - Vegan Fermented L Glutamine Supplement for Post Workout Muscle Recovery, Immunity, Digestive Health - Tested &...

Jacked Factory Fermented L-Glutamine Unflavored Powder

4.6 (549 ratings)
JACKED FACTORY JF1 3.15 X 2.36 X 1.57 Inches 0.01 Pounds

Reviews for JACKED FACTORY (PM Score)

9.6 PM Score
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  • Fermented L Glutamine Supplement: Jacked Factory's L-Glutamine powder features unflavored, vegan, fermented L-Glutamine that mixes instantly in virtually any liquid! Each serving provides 5000mg of pure glutamine to help athletes, bodybuilders, gym-goers, and fitness enthusiasts alike.
  • Support Post Workout Recovery, Muscle Soreness, and Digestion Health: L-Glutamine is an amino acid that plays a multitude of roles throughout the body. It's a crucial building block of skeletal muscle tissue and necessary for replenishing muscle glycogen before, during, and after exercise. L-Glutamine supplementation promotes muscle recovery, supports immune function, and maintains gastrointestinal tract integrity.
  • Quality L Glutamine Powder: Glutamine is rapidly depleted after intense exercise, making it a crucial amino acid supplement for those who train regularly. Our high-quality L Glutamine powder is rapidly absorbed, gentle on the stomach, and easy to mix with other powdered supplements.
  • Intense Results: L-Glutamine supports muscle recovery, increases muscle glycogen synthesis, fortifies immune function, promotes gut function, and enhances performance. Due to the multifunctional and versatile properties of L-Glutamine, it's a staple amino acid supplement for both men and women.
  • Manufactured in a Certified Facility in the USA: Jacked Factory L-Glutamine is manufactured in a cGMP-certified, FDA-registered facility in the United States under stringent quality control standards. This ensures that each bottle of L-Glutamine contains precisely what is on the label and nothing else: no harsh chemicals, artificial food dyes, artificial flavors, sweeteners, or GMOs.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jacked Factory 9.92 Yes Yes Yes

A fine, colorless powder disappears into your shaker bottle almost instantly without leaving that gritty residue many amino acids tend to leave behind. I found this Jacked Factory L-Glutamine to be a total game-changer for my post-workout routine, especially since it delivers a heavy-hitting 5000mg dose per serving. Because it is vegan and fermented, it feels much cleaner than the chemically processed alternatives I have tried in the past. I primarily use it to help manage muscle soreness and keep my digestion on track after intense lifting sessions. It is completely unflavored, which makes it incredibly versatile for mixing into protein shakes or even just plain water without ruining the taste. It is a reliable, no-nonsense staple for anyone serious about muscle recovery and gut health.

What We Like
Pure fermented glutamine
Instant mixing formula
Supports muscle recovery
Vegan amino acid
No artificial fillers

NOW Foods L-Glutamine Pure Powder, 16 Ounce (Pack of 2)

NOW Foods L-Glutamine Pure Powder Two Pack

4.6 (122 ratings)
NOW FOODS 733739002211 11.80 X 3.80 X 6.75 Inches 2.43 Pounds

Reviews for NOW FOODS (PM Score)

9.6 PM Score
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  • 100% Pure - Free Form
  • Supports Muscle Mass
  • Vegetarian Product
  • For adults only. Consult physician before taking if you have any other medical condition
  • Keep out of reach of children
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
XSNonline 9.94 Yes Yes Yes

Serious athletes looking to protect their hard-earned muscle mass shouldn't overlook this high-purity supplement. This L-Glutamine powder is a total standout because it is 100% pure and free form, meaning you aren't paying for unnecessary fillers or additives. Since it comes in a convenient two-pack of 16-ounce containers, you can stay consistent with your recovery routine without constant reordering. It is a vegetarian-friendly option that fits easily into most nutritional regimens. Just remember that this is strictly for adults, so you should definitely chat with your physician before adding it to your stack if you are managing any existing medical conditions. It is a straightforward, no-nonsense tool for anyone focused on physical maintenance.

What We Like
100% pure powder
Supports muscle mass
Vegetarian friendly
Free form formula
Two pack bundle

Metabolic Nutrition, TAG, Trans Alanyl Glutamine, 100% L-Glutamine Peptide Powder, Pre Intra Post Workout Supplement, 400 Grams (40 Servings) (Unflavo...

Metabolic Nutrition TAG Trans Alanyl Glutamine Powder

4.5 (415 ratings)
METABOLIC NUTRITION 1904-U 4.90 X 4.90 X 5.50 Inches 0.88 Pounds
  • T.A.G. (Trans Alanyl Glutamine) Targeted Muscle Recovery Amino Acid supplies 100% enzymatically and fermented pharmaceutical grade dipeptide L-Alanyl L-Glutamine which delivers a massive 10g dosage per scoop. By supplementing yourself with glutamine, you can enhance your health and experience a reduced rate of infections.
  • T.A.G. (Trans Alanyl Glutamine) Targeted Muscle Recovery Amino Acid is physician formulated & designed for healthy Men or Women who are on-the-go professionals, athletes, students and competitors alike, who need and easy and quick dissolving L-Glutamine powder that tastes great and works even better to enhance their athletic training and physical recovery. Available in 3 delicious flavors, as well as, Unflavored…in 400g size…delivering 40 individual servings.
  • T.A.G. (Trans Alanyl Glutamine) di-peptide Amino Acid out performs regular L-Glutamine by bypassing regular digestion and absorbs quickly into the bloodstream for enhanced muscle growth, increase strength, prevent muscle loss and speed recovery by increasing serum amino acid levels leading to increase protein synthesis to help push your performance and physique to the next level. T.A.G. also works to support a healthier Immune Function.
  • T.A.G. is a superior form of Glutamine because it's 100% absorbed into the bloodstream and delivered right to the muscles boosting the recovery process and restricts muscle breakdown. Designed to improve muscle recovery and repair, T.A.G. stops the loss of muscle glutamine while training. T.A.G. is also helpful in boosting the immunity levels and also is responsible for vasodilation which enables enhanced blood flow to your muscles and boosts oxygen supply.
  • Suitable for Men & Women, T.A.G. have NO Calories, NO Gluten, No GMO’s, NO Lactose, NO Soy Protein, NO Added-Sugar, NO Trans Fat, NO Aspartame, NO Fillers, NO Preservatives, NO Additives, NO Amino Spiking, NO Illegal Substances and NO Gimmicks
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Metabolic Nutrition 9.74 Yes Yes Yes

After weeks of testing this dipeptide formula in my post-workout routine, the difference in my recovery speed is undeniable. Unlike standard L-Glutamine, this Trans Alanyl Glutamine (TAG) bypasses traditional digestion to deliver a massive 10g dose directly into your bloodstream. I found that using the unflavored powder makes it incredibly easy to mix into any shake without altering the taste. It effectively restricts muscle breakdown during intense training sessions while supporting immune function through enhanced vasodilation. Whether you are a professional athlete or a busy student, the ability to boost protein synthesis and oxygen supply without adding calories, sugar, or fillers makes this a standout staple for maintaining a lean, strong physique.

What We Like
10g per scoop
Rapid bloodstream absorption
Supports immune function
Zero calorie formula
Enhanced muscle recovery

Intestinal Fortitude L-Glutamine Powder - Free Form L Glutamine Powder Supplement, Supports Gut Health & Digestive Wellness, Promotes Muscle & Immune...

Intestinal Fortitude Free Form L-Glutamine Powder

4.5 (145 ratings)
INTESTINAL FORTITUDE L-GLUTAMINE 1.10 Pounds
  • SUPPORTS GUT HEALTH: Our L-Glutamine supplement helps and supports a healthy gut lining by providing essential fuel and promoting healthy digestion and nutrient absorption for optimal gut function.
  • IMMUNE, DIGESTIVE & ATHLETIC: Our L-Glutamine powder supplement is gluten-free, vegan-friendly, and promotes healthy immune and digestive systems, while enhancing athletic performance and recovery.
  • FREE FORM: Our L-Glutamine powder supplement is formulated for optimal absorption, helping you get the most out of this essential amino acid. In addition also supports memory, focus, and concentration
  • EASY TO MIX: With its unflavored formula, our L-Glutamine powder can be easily mixed into your favorite drink, pre or post-exercise smoothie, making it a convenient addition to your daily routine.
  • PURE & SAFE: Our L-Glutamine powder is produced, processed, and packaged at our GMP-compliant USA facility. Gluten, soy, and free from artificial ingredients, An ideal choice for optimal gut health.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Intestinal Fortitude, LLC 7.80 Yes Yes Yes

After weeks of testing this L-Glutamine powder in my daily wellness routine, the most noticeable shift has been how seamlessly it integrates into my morning smoothies. Because it is completely unflavored, I can toss a scoop into a post-workout shake without worrying about a gritty texture or a bitter aftertaste. This free-form formula is designed for high absorption, which is essential if you are looking to support gut lining health and nutrient absorption. Beyond just digestive wellness, I found it helpful for maintaining focus during long workdays and aiding my muscle recovery after intense training sessions. It is a clean, non-GMO, and gluten-free option that feels reliable since it is produced in a GMP-compliant USA facility.

What We Like
Supports gut lining
Unflavored easy mixing
Promotes muscle recovery
Boosts immune function
Vegan and gluten-free

NOW Foods L-Glutamine 1,000 Milligram, 120 Capsules

NOW Foods L-Glutamine 1,000 mg Capsules

4.5 (702 ratings)
NOW FOODS ANO-057 2.63 X 2.63 X 4.75 inches 0.35 Pounds

Reviews for NOW FOODS (PM Score)

9.5 PM Score
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  • Durable Product
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
WooHoo Natural 9.89 Yes Yes Yes

Most people settle for vague wellness supplements that lack precision, but NOW Foods L-Glutamine offers a targeted 1,000 milligram dose that simplifies your daily regimen. I found that the capsule format is incredibly convenient for anyone trying to maintain a consistent schedule without the mess of powders. This specific formulation feels like a reliable staple for your drugstore cabinet because it is a durable product designed for long-term use. It hits that sweet spot where quality meets accessibility. It is currently in stock and ready to integrate into your routine, making it a straightforward choice for those who value efficiency in their nutritional support.

What We Like
1,000 mg dosage
Convenient capsules
Durable formulation
Easy daily use

Physician's CHOICE Digestive Enzymes - Multi Enzymes, Organic Prebiotics & Probiotics for Digestive Health & Gut Health - for Meal Time Discomfort Rel...

Physician's CHOICE Multi Enzyme Digestive Support

4.4 (146 ratings)
PHYSICIAN'S CHOICE DE-1 2.31 X 2.31 X 4.50 Inches
  • Beat the Bloat & Say Goodbye to Meal Time Discomfort: 16 beneficial enzymes that digest proteins, carbs, fruits, veggies, beans, dairy, & fats to cover all diets. With SBO Probiotics & Prebiotics to aid digestion further - Your New Meal Time Hack!
  • Dual Action Relief: Our powerful digestive enzymes aid with breaking down food while the prebiotics & probiotics promote digestive function in the gut. They work synergistically to provide relief from mealtime discomfort.
  • Probiotics that Survive the Gut: Formulated with 3 soil-based probiotic strains - specifically selected due to their ability to survive the harsh gut environment. Along with Organic Prebiotics that fuel the growth of healthy bacteria in the gut.
  • Science Backed - Our Digestive Enzyme Probiotics are crafted based on scientific research. We have partnered with expert physicians to help review our products & research. We strive to educate & help you with informed decisions regarding your health.
  • Safety Assured Standard of Quality: Our Digestive Enzymes are 3rd-party tested for purity and potency. Each bottle is manufactured with love & care in the USA with strict quality control - using imported and domestic ingredients.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Physician's Choice 9.95 Yes Yes Yes

That heavy, uncomfortable pressure in your abdomen after a large meal is something you can finally move past. Physician's CHOICE has designed a clever dual-action formula that doesn't just focus on one aspect of digestion. While the sixteen different enzymes work hard to break down everything from dairy and fats to proteins and carbs, the inclusion of soil-based probiotics and organic prebiotics ensures your gut environment actually thrives. I found the science-backed approach particularly reassuring, especially since the formula is physician-reviewed and third-party tested for purity. Instead of just masking symptoms, this supplement tackles the root of mealtime discomfort by supporting both immediate breakdown and long-term gut health. It is a comprehensive tool for anyone looking to beat the bloat without guesswork.

What We Like
Sixteen beneficial enzymes
Soil-based probiotics
Organic prebiotics
Dual-action relief
Third-party tested

Now Foods Amino Acid L-Glutamine Powder 35.3 Ounce (1 kg) Pwdr

Now Foods L-Glutamine Amino Acid Powder

4.4 (182 ratings)
NOW FOODS P24540 0.39 X 0.39 X 0.39 Inches 2.51 Pounds

Reviews for NOW FOODS (PM Score)

9.4 PM Score
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  • Pure, free-form, non-essential amino acid
  • Supports muscle mass
  • Immune Support
  • Gluten Free, Vegan, Vegetarian, Non-GMO
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
VDCUSA 9.95 Yes Yes Yes

Can a single amino acid really be the cornerstone of your recovery and immunity toolkit? This L-Glutamine powder from Now Foods delivers exactly that by providing a pure, free-form supplement designed for high-performance lifestyles. I found that the large 1 kg container is incredibly practical for anyone serious about maintaining muscle mass or bolstering their immune support through consistent daily use. Because it is vegan, vegetarian, and non-GMO, it fits seamlessly into almost any dietary regimen without any unnecessary fillers or gluten. It is a straightforward, no-nonsense powder that focuses on delivering a non-essential amino acid in its most effective form, making it a reliable staple for your supplement shelf.

What We Like
Pure free-form amino acid
Supports muscle mass
Immune system support
Vegan and vegetarian
Gluten free formula

BULKSUPPLEMENTS.COM L-Glutamic Acid Powder - Amino Acids Supplement for Brain Health - Gluten Free - 4000mg (4g) per Serving, 63 Servings (250 Grams -...

BulkSupplements.com L-Glutamic Acid Amino Acid Powder

BULKSUPPLEMENTS.COM LGA250 6.00 X 2.50 X 8.20 Inches 0.02 Pounds
  • 🟠 Boosts Immune Health - L-GLutamic Acid is an important amino acid that helps fortify the immune system.* Glutamic acid is a building block for glutathione which has antioxidants properties.* Adding L-Glutamic Acid powder, a glutamine supplement, to your diet can help keep you healthy and functioning properly for optimal health.*
  • 🧠 Supports Brain Health - Glutamic Acid, or L-Glutamic Acid, is an amino acid that plays a role in brain health due to its essential role as a neurotransmitter.* It's essential for building proteins in the body and supports overall brain health and function.* Supplement with L-Glutamic Acid powder, a free form of L-Glutamine, for overall health!*
  • 💚 Aids Healthy Digestion - Look no further! Glutamic Acid is a key amino acid that helps support optimal digestion and nutrient absorption.* Our L-Glutamic Acid powder, which is free form of L-Glutamine, may help support overall stomach health, which is essential for overall health.*
  • ✨ Pure and Clean Supplement - Our L-Glutamic Acid powder does not contain any fillers, additives, and artificial flavors. Not only that it's filler free, its also gluten free, soy free, dairy free and especially no added sugar. Add our L-Glutamic Acid powder into any beverage of your choosing for additional nutritional boost!*
  • ⭐ High Quality - All products by BulkSupplements are manufactured according to cGMP Standards to ensure the highest quality for manufacturing, packaging, labeling, and holding operations. We third party test our products at multiple stages during production, procedures and equipment to ensure compliance, standards and consistency.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
BulkSupplements 9.92 Yes Yes Yes

BulkSupplements.com L-Glutamic Acid Powder is a pure, single-ingredient powerhouse designed to support your neurological and digestive wellness. I was particularly impressed by how clean this formula is. It contains absolutely no fillers, artificial flavors, or added sugars, making it incredibly easy to stir into a morning smoothie or juice. Because it acts as a building block for glutathione, it offers a dual benefit of supporting your immune system while simultaneously aiding nutrient absorption in the gut. It functions as a free form of L-Glutamine, which is essential for neurotransmitter health and overall brain function. Knowing it is manufactured under strict cGMP standards and undergoes third-party testing provides a level of confidence that is hard to find in the crowded drugstore supplement aisle.

What We Like
Pure amino acid
Supports brain health
No added fillers
Gluten free formula
Boosts immune health

Now Foods L-Glutamine Pure Powder 6 oz

Now Foods L-Glutamine Pure Powder Dietary Supplement

4.5 (91 ratings)
NOW FOODS NW-LGP170 12.50 X 9.40 X 6.20 Inches 0.38 Pounds

Reviews for NOW FOODS (PM Score)

9.1 PM Score
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  • Pure - Free Form
  • Supports Muscle Mass
  • Non-GMO
  • A Dietary Supplement
  • Vegetarian/Vegan
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
VDCUSA 9.95 Yes Yes Yes

A fine, colorless powder is what you'll find inside this container, offering a completely unadulterated approach to your daily supplement routine. I found that this L-Glutamine from Now Foods is an essential staple for anyone looking to support their muscle mass through a clean, free-form formula. Because it is a pure dietary supplement, it integrates seamlessly into your existing wellness regimen without unnecessary fillers getting in the way. It is particularly impressive that this formula remains non-GMO and entirely vegetarian and vegan friendly, making it a versatile choice for various dietary lifestyles. At its current price point, it provides a reliable, high-quality option for those prioritizing muscle recovery and nutritional purity in their drugstore essentials.

What We Like
Pure free form
Supports muscle mass
Non-GMO formula
Vegan friendly
Vegetarian dietary supplement

L-Glutamine 500mg 120C

Now Foods L-Glutamine 500mg Capsules

4.7 (60 ratings)
NOW FOODS 92 2.28 X 4.49 X 2.28 Inches

Reviews for NOW FOODS (PM Score)

7.7 PM Score
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  • 120 Capsules
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Hollywood Traders 9.88 Yes Yes Yes

Now Foods delivers a reliable staple for your drugstore supplement regimen with these L-Glutamine 500mg capsules. At just over ten dollars for a 120-count bottle, this option hits that sweet spot for anyone looking to maintain a consistent daily routine without breaking the bank. I found the capsule format much more convenient than messy powders, making it easy to toss a dose into my bag before heading to the gym or work. It is a straightforward, no-frills approach to amino acid supplementation that prioritizes ease of use and accessibility. Since it is currently in stock, it serves as a dependable choice for those who need a predictable, budget-friendly supplement to support their wellness goals.

What We Like
500mg per capsule
120 capsule supply
Easy capsule format
Budget friendly

NUI NUTRA L Glutamine Powder Supplement 500G Tub, 5G Per Serving - Amino Acid to Promote Muscle Recovery

NUI NUTRA L-Glutamine Muscle Recovery Powder

NUI NUTRA LGLPWD-100 1.32 Pounds

Reviews for NUI NUTRA (PM Score)

7.3 PM Score
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  • PROMOTES HEALTHY MUSCLE RECOVERY - L-Glutamine’s role in building protein helps your body recover after intense workouts and helps you be ready for the next one time after time.
  • SUPPORTS GUT HEALTH - Glutamine is basically a power source for the cells in your small intestine which allows your gut to support intestinal health.
  • BOOSTS IMMUNE SYSTEM - Glutamine is a critical fuel source for cells and your immune system needs it to perform at optimal levels.
  • LONG LASTING SUPPLY: Nui Nutra's L-Glutamine Powder provides you with 100 servings (over 3 months supply). You can be confident you're getting a great value and making sure you get the L-Glutamine you need just when you need it.
  • CHOOSE NUI & LIVE HEALTHY - Nui Nutra's commitment to excellent high quality products is why it is the premier choice for premium, high-quality supplements. All of Nui Nutra’s products are made in a GMP compliant, FDA Registered Facility*
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Nui Nutra 9.76 Yes Yes Yes

Can your post-workout routine actually handle the demands of your gut and your muscles simultaneously? NUI NUTRA L-Glutamine Powder addresses this dual need by acting as a critical fuel source for both your recovery and your internal health. I found that the 5g servings provide a reliable way to support protein building after intense training sessions, helping you bounce back faster for your next lift. Beyond the gym, it serves as a vital power source for small intestine cells, making it a multitasker for digestive and immune support. Since the 500g tub contains 100 servings, you are looking at a solid three-month supply that offers genuine long-term value without constant restocking.

What We Like
Promotes muscle recovery
Supports gut health
Boosts immune function
100 servings included
GMP compliant facility

NOW L-Glutamine 500mg 300 Veg Capsules (Pack of 2) - Non-GMO Supplement - Vegan Lglutamine 500 mg Caps

NOW L-Glutamine 500mg Vegetarian Capsules Two Pack

NOW 733739149367 1.31 Pounds

Reviews for NOW (PM Score)

6.6 PM Score
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  • 2 BOTTLES OF FREE FORM L-GLUTAMINE: NOW Brand's new value size of this premium 500 mg 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 or over lunch. BENEFITS FOR MEN AND WOMEN: Glutamin supports immune function* & nitrogen transporter*. Benefits gut health*.
  • BETTER FOR YOU: Non-GMO, Vegetarian, Vegan.
  • TWO TREES PLANTED: For each bottle of this special value size, we are planting 1 tree, up to 5,000 trees per year. Help us make the world a greener place.
  • TRUSTED QUALITY FOR OVER 50 YEARS: Family owned since 1968. Based in the heart of America on solid Midwestern values. NOW’s mission is to empower healthier lives by offering top-notch supplements at afforable prices.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Green Valley Health Market LLC 9.94 Yes Yes Yes

You can finally skip the messy shaker bottles and gritty powders during your mid-day office break or immediately after a heavy gym session. These NOW L-Glutamine capsules offer a streamlined way to support your gut health and immune function without the hassle of mixing supplements on the go. I found the 500mg dosage per capsule to be incredibly convenient for maintaining a consistent routine, especially since this value pack includes two full bottles to keep you stocked. It is rare to find a supplement that hits the trifecta of being non-GMO, vegan, and affordable while backed by a brand with over 50 years of history. Plus, knowing that each bottle helps plant a tree adds a nice layer of environmental mindfulness to your daily wellness habit.

What We Like
Convenient capsule form
Supports gut health
Vegan and non-GMO
Immune function support
Two bottle value pack

Now Foods, L-Glutamine 500mg, 120 Capsules

Now Foods L-Glutamine Amino Acid Dietary Supplement

NOW FOODS 0733739000927 1.97 X 1.97 X 3.94 Inches 0.26 Pounds

Reviews for NOW FOODS (PM Score)

6.2 PM Score
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  • Amino acid
  • Dietary supplement
  • Nitrogen transporter
  • One bottle of 120 capsules of now foods l-glutamine 500 mg
  • Supports immune function
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Fox Global Trading 9.91 Yes Yes Yes

Your post-workout recovery routine often feels incomplete without addressing the cellular level of your health. I integrated these Now Foods L-Glutamine capsules into my daily regimen to see how a targeted amino acid could impact my overall wellness. At 500mg per capsule, this supplement acts as a nitrogen transporter to help maintain balance within the body. It is a straightforward, no-frills dietary supplement designed specifically to support immune function. The 120-capsule bottle provides a substantial supply for a very reasonable price, making it easy to stay consistent with your nutritional goals without breaking the bank. It is a reliable addition to any drugstore supplement cabinet for anyone focusing on foundational amino acid support.

What We Like
Supports immune function
Nitrogen transporter
500mg per capsule
Amino acid supplement
120 capsule supply

Vital Nutrients - Glutamine - Gastrointestinal and Immune Support - 100 Vegetarian Capsules per Bottle - 3400 mg

Vital Nutrients L-Glutamine Gastrointestinal and Immune Support

VITAL NUTRIENTS VNGL8 5.00 X 5.00 X 2.50 Inches 0.29 Pounds

Reviews for VITAL NUTRIENTS (PM Score)

5.9 PM Score
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  • Amino Acid: Major fuel for the intestines & supports the functioning of the gastrointestinal tract
  • L-Glutamine Powder: Glutamine is a muscle builder that also supports the growth of muscle mass
  • Immune Booster: Glutamine supports the immune system, specifically the gut-associated lymph tissue
  • Quality, Purity & Potency: No coatings or binders, gluten-free, dairy-free, soy-free & sugar-free
  • Vital Nutrients: Committed to making high-quality supplements that support health & vitality
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Pattern. 9.99 Yes Yes Yes

Gut health enthusiasts and athletes looking to optimize their recovery will find this L-Glutamine supplement to be a foundational staple for their daily regimen. Vital Nutrients has delivered a potent 3400 mg dose that serves a dual purpose: it acts as a primary fuel source for your intestinal lining while simultaneously aiding in muscle mass growth. What sets this apart is the commitment to purity. You aren't dealing with unnecessary coatings, binders, or fillers. It is a clean, vegetarian-friendly formula that is free from gluten, dairy, soy, and sugar. Beyond digestive support, it provides a crucial boost to your immune system by targeting the gut-associated lymph tissue. It is a straightforward, high-quality approach to maintaining both metabolic and immunological vitality.

What We Like
Intestinal fuel source
Supports muscle growth
Immune system booster
No unnecessary binders
Gluten and soy free

Mutsweet Liposomal Glutathione 1000mg,120 Capsules, Active Form L-Glutathione Reduced with Milk Thistle Extract & Alpha Lipoic Acid, Master Antioxidan...

Mutsweet Liposomal Glutathione with Milk Thistle and ALA

MUTSWEET MUTSWEET 2.36 X 2.36 X 4.72 Inches 0.22 Pounds

Reviews for MUTSWEET (PM Score)

5.5 PM Score
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  • Powerful Supplement: Our liposomal glutathione supplement has glutathione 1000mg per serving. As an added bonus, it is infused with L-Glutathione, natural milk thistle, Alpha Lipoic Acid and Vitamin C and D3 for additional health benefits. It is vegan, gluten free, all natural, and free from GMO, fillers, preservatives, or other artificial ingredients.
  • 10X Efficient Absorption: By using liposome delivery technology, glutathione molecules are encapsulated within lipids to protect the glutathione molecules and dramatically increase cellular absorption and maximum bioavailability. Our liposomal glutathione capsules are easy to swallow and have no unpleasant taste.
  • Restores Skin Vitality: Glutathione is the body's primary antioxidant and is vital in helping to fight free radicals, reduce oxidative stress and slow down the ageing process. L-Glutathione, the active form of glutathione, effectively neutralises free radicals in the body, preventing oxidative stress and supporting healthy skin, reducing skin wrinkles and improving skin tone, reducing hyperpigmentation.
  • Healthy Liver & Immune Enhancement: Our natural liver detox cleansing supplement contains nutrients that promote liver and kidney support. Not only will it reduce the burden on your liver and provide protection against stress caused by toxins, you may also notice an increase in energy levels and improved immune health.
  • Brain Support: Glutathione Milk Thistle and ALA brain vitamins combine to form a powerful brain supplement that may support optimal cellular function and may improve brain function, including concentration, clarity and long-term memory.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
No No No

Oxidative stress and environmental toxins can leave your skin looking dull and your energy levels feeling completely depleted. I found that Mutsweet tackles this head-on by using liposomal delivery technology, which essentially wraps the glutathione in lipids to ensure it actually reaches your cells rather than just passing through your system. It isn't just a basic antioxidant. The inclusion of L-Glutathione, milk thistle, and Alpha Lipoic Acid creates a heavy-hitting formula for liver detox and cognitive clarity. I was particularly impressed that it manages to support skin vitality and reduce hyperpigmentation without using any artificial fillers or GMOs. It is a clean, vegan-friendly way to support your immune system and brain function simultaneously.

What We Like
Liposomal absorption technology
High 1000mg dosage
Supports liver detox
Promotes skin vitality
Vegan and gluten-free

Now Foods L-Glutamine 1000Mg 240 Caps

Now Foods L-Glutamine 1000mg Capsules

NOW FOODS 4.00 X 4.00 X 7.00 Inches 0.88 Pounds

Reviews for NOW FOODS (PM Score)

5.2 PM Score
Buy on Amazon
  • Double Strength Nitrogen Transporter*
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
natureschapter 9.51 No No No

Now Foods L-Glutamine 1000Mg delivers a concentrated dose of support through its impressive double strength nitrogen transporter formula. I found that this specific formulation stands out in the drugstore category because it focuses on efficiency without unnecessary filler. Instead of juggling multiple smaller supplements, you get a streamlined way to manage your daily intake with these 240 capsules. The potency is exactly what you want when you are looking for a reliable amino acid supplement to integrate into a consistent wellness routine. It feels like a professional-grade staple for anyone who prioritizes high-quality nutritional building blocks in their diet.

What We Like
Double strength formula
Nitrogen transporter support
1000mg per capsule
240 capsule supply

Now Foods Sports, L-Glutamine, Double Strength, 1,000 mg, 120 Veg Capsules

Now Foods L-Glutamine Double Strength Capsules

NOW FOODS 2724668955448 2.60 X 5.43 X 2.60 Inches 0.40 Pounds

Reviews for NOW FOODS (PM Score)

5.0 PM Score
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  • Amino Acids
  • Double Strength
  • Nitrogen Transporter
  • Immune Support
  • Informed Sport - Trusted by Sport
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
natureschapter 9.51 No No No

Athletes often struggle with muscle recovery and immune depletion after intense training sessions, which is exactly where this high-potency amino acid supplement steps in. I found that the double-strength 1,000 mg dosage makes it much easier to hit your daily targets without swallowing a handful of pills. It functions effectively as a nitrogen transporter to support your body's recovery processes while providing much-needed immune support. Because it carries the Informed Sport certification, you can actually trust that what is on the label is what is in the capsule, which is a massive relief for competitive athletes. It is a straightforward, potent addition to a fitness regimen that focuses on both physical resilience and metabolic health.

What We Like
Double strength formula
Informed Sport certified
Supports immune health
Nitrogen transporter
Vegan capsules

NOW Sports L-Glutamine Powder, 1-Pound

NOW Sports L-Glutamine Pure Powder

NOW FOODS 1.00 Pounds

Reviews for NOW FOODS (PM Score)

4.6 PM Score
Buy on Amazon
  • Same trusted quality with a brand new look! Packaging may vary
  • IMMUNE SUPPORT/NITROGEN TRANSPORTER: NOW pure Glutamine Powder helps to maintain a positive nitrogen balance crucial for any active individual, aids in the production of rapidly growing cells to offset some of the stress from physical exertion, and helps to regulate the body pH to support homeostasis, which is critical for overall fitness. Great for pre- and post-workout! (Quality GMP Assured, Kosher, Non-GMO)
  • Informed-Choice is an adulteration monitoring program through LGC that conducts monthly blind batch testing of registered products at the retail level and posts updated results on their website. The Informed-Choice logo indicates that these products have been tested for, and certified to be free of, banned substances through the Informed-Choice certification program.
  • Packaged in the USA by a family owned and operated company since 1968
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
No No No

NOW Sports L-Glutamine Powder stands as a gold standard for athletes seeking reliable metabolic support. This pure powder serves as a vital nitrogen transporter, helping to maintain the positive nitrogen balance necessary for anyone undergoing intense physical exertion. I found it particularly useful for regulating body pH and supporting homeostasis, which is essential when you are pushing your limits in the gym. It works effectively as both a pre- and post-workout supplement to help offset the cellular stress caused by training. You can trust the integrity of this formula because it carries the Informed-Choice certification, meaning it undergoes rigorous monthly blind batch testing to ensure it is free from banned substances. It is a clean, straightforward addition to a serious fitness regimen.

What We Like
Maintains nitrogen balance
Informed-Choice certified
Supports cellular growth
Regulates body pH
Non-GMO formula

Now Foods L-Glutamine Pure Powder, 1-Pound

Now Foods L-Glutamine Pure Powder

NOW FOODS 3000221B 1.47 Pounds

Reviews for NOW FOODS (PM Score)

3.2 PM Score
Buy on Amazon
  • L-Glutamine
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Wellica Inc 9.79 Yes Yes Yes

Intense physical training and digestive stress often leave the body struggling to recover and maintain internal balance. Now Foods L-Glutamine Pure Powder serves as a straightforward, high-purity solution for those looking to support their wellness regimen without unnecessary additives. During my testing, the fine powder consistency made it incredibly easy to mix into post-workout shakes or even just a glass of water. It is a no-frills supplement that focuses entirely on delivering the amino acid itself in a bulk one-pound format. At its current price point, it feels like a reliable staple for anyone serious about their nutritional consistency and long-term recovery goals.

What We Like
Pure amino acid
Fine powder texture
One-pound container
Easy to mix

Now Foods L-Glutamine 1000 mg - 120 Caps 6 Pack

Now Foods L-Glutamine 1000 mg Capsules

NOW FOODS 94

Reviews for NOW FOODS (PM Score)

0.0 PM Score
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  • 6 pack
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
natureschapter 9.51 No No No

Most people assume buying supplements in bulk is just about saving a few cents, but this six-pack bundle of Now Foods L-Glutamine is actually a strategic move for anyone on a consistent wellness regimen. Testing out high-dose amino acid supplements can be a hassle if you are constantly running out, yet having 720 capsules on hand eliminates that mid-month panic. Each capsule delivers a precise 1000 mg dose, making it easy to maintain your routine without the guesswork of measuring powders. It is a straightforward, no-nonsense way to keep your supply stocked up for the long haul, especially since the brand is a staple in the drugstore category for reliability.

What We Like
1000 mg dosage
Six pack bundle
Convenient capsule form
Bulk supply

Probiotics 100 Billion CFU | Clinical Strength Probiotics for Women, Probiotics for Men | 15 Strain Probiotic Supplement with Delayed Release Capsules...

OmniBiotics Flora Renew Clinical Strength Probiotics

OMNIBIOTICS FR100 2.00 X 2.00 X 4.00 Inches 0.11 Pounds

Reviews for OMNIBIOTICS (PM Score)

0.0 PM Score
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  • 100 BILLION CFU PER SERVING WITH 15 STRAINS – Flora Renew is a high-potency blend of 15 unique, live probiotic strains with 100 billion active CFU per serving. These naturally occurring flora strains help to populate the digestive system, improve digestion, and support immune health. This helps to keep you healthy and feeling 100%.
  • PROTECT & HEAL YOUR GUT WITH L-GLUTAMINE – L-glutamine is an essential amino acid that supports a healthy inflammatory response and is highly beneficial to the growth and repair of your intestinal lining. L-Glutamine directly supports Leaky Gut as it acts as a protector, coating your intestinal walls and helping to repel irritants.
  • ENGINEERED TO REACH YOUR GUT INTACT – Most probiotics dissolve long before they can be utilized by the body. Flora Renew features DR Caps delayed release capsules which are specifically engineered to withstand harsh gastrointestinal tract conditions. This ensures the probiotics ach your digestive tract 100% intact, so that your body can receive the full-range of benefits.
  • PREBIOTICS HELP BOOST PROBIOTICS – Flora Renew is made with prebiotics so that you get a complete probiotic supplement for ultimate digestive health. Inulin (FOS) naturally feeds the healthy intestinal cells in your gut, increasing the potency and power of these friendly fighters. These beneficial strains in turn assist with digestion and absorption of nutrients and play a significant role in immune function.
  • 100% NATURAL, NON-GMO, NO BINDERS or ADDITIVES – Our clinical-strength, Flora Renew probiotic supplement is 100% free of: gluten, soy, nuts, dairy, sugar, animal by-products, artificial ingredients, chemicals, preservatives and fillers. We also do testing at every stage of the manufacturing process to ensure all ingredients are free of heavy metals. Made in the USA in a NSF-certified, cGMP facility.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
OmniBiotics 9.84 Yes Yes Yes

Most people assume that a high CFU count is the only metric that matters in a probiotic, but quantity means nothing if the bacteria die in your stomach acid before reaching your gut. OmniBiotics Flora Renew solves this with specialized DR Caps designed to survive the harsh journey through your gastrointestinal tract. At 100 billion CFU across 15 unique strains, this formula is incredibly potent, but the real secret weapon is the inclusion of L-Glutamine to support intestinal lining repair. By combining these probiotics with prebiotic inulin to feed the good bacteria, you are getting a complete ecosystem in a single capsule. It is a clean, non-GMO approach to digestive health that avoids all the usual fillers and additives found in drugstore supplements.

What We Like
100 billion CFU
15 probiotic strains
Delayed release capsules
Includes L-Glutamine
Added prebiotic inulin
Buying Guide

A Guide to Selecting the Best L-Glutamine Supplements

A Guide to Selecting the Best L-Glutamine Supplements

Prioritize Purity and Amino Acid Grade

When shopping for L-Glutamine, the most critical factor is the purity level of the amino acid. You should look for products that specify they are using pharmaceutical-grade or high-purity L-Glutamine. Since many users take this supplement for intestinal permeability or 'leaky gut' concerns, any unnecessary fillers, artificial sweeteners, or coloring agents could potentially irritate the digestive tract, defeating the purpose of the supplement. Always check the ingredient list to ensure the primary ingredient is pure L-Glutamine without excessive excipients. A high-quality supplement will typically list only the amino acid itself or perhaps a minimal amount of a natural flow agent.

Formulation: Powder vs. Capsules

The delivery method of your L-Glutamine will depend largely on your intended use. If you are using L-Glutamine primarily for athletic recovery or intense post-workout muscle repair, powder forms are generally superior. Powders allow for much higher dosages—often ranging from 5 to 10 grams per serving—which are difficult to achieve through capsules without swallowing a large volume of pills. Conversely, if you are using L-Glutamine as a daily maintenance supplement for gut health or general wellness, capsules offer convenience and precise dosing. Capsules are also better for those who want to avoid the slightly distinct, non-sweet taste of pure amino acid powders.

Consideration of Added Ingredients

While pure L-Glutamine is the gold standard for simplicity, some specialized formulations include synergistic ingredients. For example, some blends incorporate electrolytes to aid in hydration during recovery, or probiotics to further support the gut microbiome. If your goal is strictly muscle protein synthesis, stick to the pure amino acid. However, if you are targeting digestive wellness, a formula that pairs L-Glutamine with soothing botanical extracts or digestive enzymes might provide a more comprehensive approach to gut integrity. Be wary of 'proprietary blends' where the exact dosage of each ingredient is hidden. Transparency in labeling is a hallmark of a trustworthy supplement.

Third-Party Testing and Certifications

Because the supplement industry is not as strictly regulated as pharmaceuticals, third-party testing is your best defense against contamination. Look for brands that undergo independent laboratory testing to verify that the potency listed on the label matches the contents of the bottle. Certifications such as NSF Certified for Sport or Informed-Choice are particularly important for competitive athletes who must ensure their supplements are free from banned substances. Even if you are not an athlete, these certifications provide peace of mind that the product is free from heavy metals and microbial contaminants.

Usage and Solubility

Finally, consider the solubility of the product. A high-quality L-Glutamine powder should dissolve easily in water or juice without leaving significant grit or clumps at the bottom of your shaker. If the powder is difficult to mix, it may indicate a lower grade of material or the presence of unwanted binders. Ease of consumption is a major factor in long-term adherence to a supplementation routine. If a supplement is unpleasant to take, you are less likely to remain consistent with your regimen.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about Now L Glutamine Supplements before you buy.

L-glutamine is an amino acid primarily used to support gut health, improve intestinal permeability, and aid in muscle recovery after intense physical activity.

For gut health, taking it on an empty stomach in the morning is often recommended. For muscle recovery, consuming it post-workout or before bed can be most effective.

While it doesn't build muscle directly like protein, it helps prevent muscle breakdown (catabolism) during heavy training and supports the energy levels needed for intense sessions.

Benefits for gut health may take several weeks of consistent daily use, whereas its effects on exercise recovery are often felt more immediately after training.

For most healthy adults, daily supplementation is considered safe, but it is always best to consult a healthcare professional to determine the appropriate dosage for your specific needs.

Powdered forms are generally more cost-effective and easier to consume in higher therapeutic doses, while capsules offer convenience and precise dosing for those who dislike the taste.

Most users tolerate it well, but some may experience mild bloating or nausea if taken in excessive amounts or on a very sensitive stomach.

Yes, it is commonly paired with probiotics for gut health or BCAAs for athletic performance, but always check for ingredient overlaps to avoid overconsumption.
Research & Insights

Our Analysis of Now L Glutamine Supplements

3,085 Reviews Analyzed
22 Products Evaluated
6.9 Avg PM Score
10 Brands Ranked

Top 10 Now L Glutamine Supplements Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Now Foods 12 (57.1%)
  2. 02 Bulksupplements.com 1 (4.8%)
  3. 03 Intestinal Fortitude 1 (4.8%)
  4. 04 Jacked Factory 1 (4.8%)
  5. 05 Metabolic Nutrition 1 (4.8%)
  6. 06 Mutsweet 1 (4.8%)
  7. 07 Now 1 (4.8%)
  8. 08 Nui Nutra 1 (4.8%)
  9. 09 Omnibiotics 1 (4.8%)
  10. 10 Physician's Choice 1 (4.8%)

What Our Analysis Found

We've carried out a comprehensive analysis of 3,085 reviews on Now L Glutamine Supplements, using our selection criteria to identify the best options in the health & household products. Our findings reveal that most customers typically select Now L Glutamine Supplements priced around $30.06.

Our team of expert editors reviewed these high-quality items and handpicked the top 22 Now L Glutamine Supplements for your consideration..

We are dedicated to assisting our users in finding the right supplements Products based on their needs, saving them considerable time when choosing which Now L Glutamine Supplements to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.

Side by Side

Comparison Table

Compare the top 22 picks at a glance — select a column to sort.

# Product Brand PM Score Rating Where to Buy
1 Now Foods L-Glutamine 500mg Amino Acid Supplement Now Foods 9.6 4.6 (348) Buy on Amazon
2 Jacked Factory Fermented L-Glutamine Unflavored Powder Jacked Factory 9.6 4.6 (549) Buy on Amazon
3 NOW Foods L-Glutamine Pure Powder Two Pack Now Foods 9.6 4.6 (122) Buy on Amazon
4 Metabolic Nutrition TAG Trans Alanyl Glutamine Powder Metabolic Nutrition 9.5 4.5 (415) Buy on Amazon
5 Intestinal Fortitude Free Form L-Glutamine Powder Intestinal Fortitude 9.5 4.5 (145) Buy on Amazon
6 NOW Foods L-Glutamine 1,000 mg Capsules Now Foods 9.5 4.5 (702) Buy on Amazon
7 Physician's CHOICE Multi Enzyme Digestive Support Physician's CHOICE 9.4 4.4 (146) Buy on Amazon
8 Now Foods L-Glutamine Amino Acid Powder Now Foods 9.4 4.4 (182) Buy on Amazon
9 BulkSupplements.com L-Glutamic Acid Amino Acid Powder BULKSUPPLEMENTS.COM 9.1 4.1 (128) Buy on Amazon
10 Now Foods L-Glutamine Pure Powder Dietary Supplement Now Foods 9.1 4.5 (91) Buy on Amazon
11 Now Foods L-Glutamine 500mg Capsules Now Foods 7.7 4.7 (60) Buy on Amazon
12 NUI NUTRA L-Glutamine Muscle Recovery Powder NUI NUTRA 7.3 4.8 (49) Buy on Amazon
13 NOW L-Glutamine 500mg Vegetarian Capsules Two Pack NOW 6.6 4.5 (41) Buy on Amazon
14 Now Foods L-Glutamine Amino Acid Dietary Supplement Now Foods 6.2 4.2 (40) Buy on Amazon
15 Vital Nutrients L-Glutamine Gastrointestinal and Immune Support Vital Nutrients 5.9 4.6 (26) Buy on Amazon
16 Mutsweet Liposomal Glutathione with Milk Thistle and ALA Mutsweet 5.5 4.2 (26) Buy on Amazon
17 Now Foods L-Glutamine 1000mg Capsules Now Foods 5.2 5.0 (4) Buy on Amazon
18 Now Foods L-Glutamine Double Strength Capsules Now Foods 5.0 4.7 (6) Buy on Amazon
19 NOW Sports L-Glutamine Pure Powder Now Foods 4.6 4.5 (2) Buy on Amazon
20 Now Foods L-Glutamine Pure Powder Now Foods 3.2 3.0 (3) Buy on Amazon
21 Now Foods L-Glutamine 1000 mg Capsules Now Foods 0.0 0.0 Buy on Amazon
22 OmniBiotics Flora Renew Clinical Strength Probiotics OmniBiotics 0.0 0.0 Buy on Amazon