Best Natural L Glutamine Amino Acids in 2026

1000 milligram of pure l glutamine per 2 capsules

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

Most abundant amino acid in the body

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.

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

Nitrogen transporter: In the body, glutamine functions as a major nitrogen transporter and is critical for the maintenance of healthy nitrogen balance.Store in a cool, dry place after opening

ONLY PURE GLUTAMINE FOR DEVELOPMENT AND RECOVERY: Naked's L-Glutamine Powder is a vegan certified and non-GMO pharmaceutical-grade amino acid supplement, manufactured in the USA and free of fillers, flavors, colors and sweeteners. This amino acid helps stimulate muscle growth and significantly improves recovery time.

FORMULATED FOR OPTIMAL ABSORPTION: Each scoop contains undiluted free-form l-glutamine in a finely micronized powder designed to maximize absorption of this key amino acid.

GREAT FOR POST-WORKOUT: Glutamine is a protein building block that protects your body from the negative effects of overtraining. You will notice marked improvements in performance, strength, endurance, recovery, immune function and gut health.

GLUTAMINE POWDER – MuscleTech Platinum 100% Glutamine powder supplies 5g of l-glutamine per serving, which works to rapidly replenish the glutamine used during training

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

AMINO ACID SUPPORT – Glutamine is the most abundant, conditionally essential free amino acid in your body – more than 20% of the amino acids in your body are glutamine. When you’re training hard, your muscles can lose up to 50% of their glutamine stores

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 and gastrointestinal tract support.*

L-Glutamine Benefits - L-glutamine; the most abundant amino acid in the body; is involved in many metabolic processes; including synthesis and protection of muscle tissue, production of glycogen; and immune support

Digestive Health - The amino acid L-glutamine is used in the intestinal tract, kidneys, gallbladder, pancreas & liver; It is also a major source of fuel for intestinal cells and supports the integrity of the intestinal lining

100% L-Glutamine - Manufactured via microbiological fermentation and is USP/FCC grade; The formula is 100% L-glutamine and contains no other substance

NOW Sports products are comprehensively tested so you can trust that our products are pure and effective for every level of athletics.

NITROGEN TRANSPORTER*: 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.*

IMMUNE SUPPORT*: Great for pre- and post-workout!

🟠 Boosts Immune Health - L-GLutamine is an important amino acid that helps fortify the immune system.* Adding our L-Glutamine powder, especially accompanied with BCAA supplements, in BCAA powder or BCAA capsules form, to your diet can help keep you healthy and functioning properly for optimal health.*

✔️ Supports Gut Health - Look no further! Glutamine or L Glutamine, in L-Glutamine powder form, is a key amino acid that helps support optimal digestion and nutrient absorption.* Our L-Glutamine powder plays an important role in maintaining a healthy gut flora, which is essential for overall health.*

✔️ Gluten Free & No Filler - Our L-Glutamine powder is gluten free, soy free, dairy free and no added sugar.* Supplementing with our L-Glutamine is perfect for active and people leading a healthy lifestyle!* Add our powder to your daily routine and regimen!

Contains all 9 Essential Amino Acids (EAAs) - Each serving consists of a 1 gram powder blend of all 9 essential amino acids

Contains all Branched Chain Amino Acids (BCAAs) - Each serving contains L-Leucine, L-Isoleucine, and L-Valine

Required for Countless Bodily Functions - The nine essential amino acids are required for many bodily processes such as building proteins and synthesizing neurotransmitters

FUEL YOUR ACTIVE LIFESTYLE – Glutamine is an amino acid your body uses for protein production. While it’s a must-have among serious athletes, glutamine is a great option for anyone who leads an active lifestyle.

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 than any other amino acid. It’s an important energy source for cells lining the gut and immune cells, making it critical for a healthy digestive tract and immune response.

ANTIOXIDANT SUPPORT - Regular body movement is terrific for whole-body health. But engaging in heavy exercise can affect glutamine levels, causing stress to the body. Our L-Glutamine formula helps support antioxidant defenses to maintain muscle health.

L-Glutamine: An amino acid that helps with post-exercise muscle cell repair and promotes gastrointestinal and immune system health*

Gut Health: Benefits gastrointestinal health and helps maintain gut permeability and optimal gut barrier function*

Recovery: Helps restore plasma glutamine levels depleted after periods of physical stress, such as prolonged exhaustive exercise*

100% Organic Plant-based Essential Amino Acids: Plant Aminos are 100% organic plant-based essential amino acids. All of the amino acids are delivered naturally in raw whole-food form by combining the most amino acid dense forms of Organic Spirulina & Organic Chlorella. They are shown to have 4x higher absorption than Whey or Soy-based amino acids.

Contains All 9 Essential Amino Acids, BCAA & 18 Total Amino Acids: Plant Aminos contains all 9 essential amino acids plus the 3 Branched-Chain Amino Acids (L-leucine, L-isoleucine & L-Valine) and 9 additional non-essential amino acids (L-Serine, L-Glutamic Acid, L-Proline, L-Glycine, L-Alanine, L-Aspartic Acid, L-Tyrosine, L-Arginine & L-Cystine).

Essential Building Blocks For Recovery & Performance: Essential amino acids and Branched Chain Amino Acids (BCAA) are building blocks the body cannot produce on its own and received through our diets. They are required to repair existing muscle, build new muscle tissue, and synthesize neurotransmitters that facilitate brain function.*

AMINO ACID AND NITRIC OXIDE FORMULA DESIGNED TO SUPPORT HEART HEALTH: Cardio fitness, pre-workout, performance, energy

LEADING L-ARGININE POWDER: Research based on a Nobel Prize winning breakthrough discovery of nitric oxide

GREAT TASTE: Quality ingredients and delicious flavor. Easy-to-Mix, Kosher, Sugar-free, Gluten Free

HPLC Lab Tested - Every batch of every product is tested by independent third party labs to ensure potency.

Fermented - NutraBio L-Glutamine is vegetable based, naturally fermented 100% L-Glutamine manufactured right here in the United States!

Without Compromise – NutraBio’s L-Glutamine provides 5000 mg of pure raw unflavored glutamine per serving.

L-Glutamine Dietary Supplement

800mg of L-Glutamine per Capsule

180 Servings of L-Glutamine Powder Per Bottle

Energy/Lean Muscle: Helps provide energy and promote lean muscle mass*

Sports: Supports sports- and fitness-related activities*

Strength: Provides support for muscle strength in anyone needing additional support*

DESIGNED FOR: L-Glutamine is the most abundant free amino acid in the body and is highly concentrated in the brain, intestinal mucosal cells, immune cells, skeletal and smooth muscles.

MUSCLE SUPPORT: In muscle tissue, the concentration of free glutamine appears to influence whether muscles will be broken down or built up. Maintaining high blood levels of glutamine inactivates glutamine synthetase so your body does not break down muscle tissue.**

DIGESTION AND IMMUNE HEALTH: Because the cells in our gut have a high turnover rate, glutamine is used to help build strong cell surfaces for better digestion and absorption. In addition, glutamine is also used as a fuel source for immune cells in response to foreign bodies.

LOSE WEIGHT FAST, BOOST YOUR MOOD - Amino Slim is the ideal shake and drink mix for supporting muscle recovery, fat loss, and an improved mood. Our formula combines premium fermented BCAAs, Kyowa Qualty L-Glutamine, clinically proven KSM-66 Ashwagandha, Satiereal Saffron, and Vegan InstAminos. This is the Raw standard in high-quality ingredients that together form the ultimate weight loss shake.

PURSUE YOUR IDEAL LEAN BODY – Proven ingredients deliver more effectiveness than regular weight loss shakes can. Amino Slim is specifically formulated to include ingredients that target appetite suppression to help keep your daily hunger and sugar cravings manageable.

GET READY TO TONE UP – Raw products are built around the science of wellness and making a real positive difference in our bodies. Whether you want to build lean muscle, lose some weight, or just stay fit, getting (and keeping) a flat tummy has never been easier.

L-Glutamine Capsules - 850mg of 'Free Form' L-glutamine in just one vegetarian capsule.

Immune & Gut Health - L-glutamine is essential for the health of the immune system and the digestive tract. In the gut it promotes the health and function of the mucosal cells for normal repair.*

Muscle Maintenance - L-Glutamine also supports optimal muscle growth and strength and has been shown to be particularly useful in helping to maintain muscle tissue.*

The brain needs glumatic acid as a fuel to power numerous brain functions but it cannot cross the blood brain barrier. l-Glutamine can more easily enter the brain and be converted into glutamic acid, a neurotransmitter believed to support mental alertness and mood.

Suggested Use: 1 capsule daily.

Allergies: Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no preservatives, or artificial color, flavor or fragrance.

Supports Gut Health

Supports Post-Workout Recovery

Pure, Quality-Assured, Unflavored and Allergen-Free Powder

Amino Acid Supplementation - L-Glutamine is produced by the body, but supplementation may address a variety of needs in already healthy individuals.*

Support Gut Health - L-Glutamine is most notable for its gastrointestinal-supportive properties and may support everyday discomforts.*

Purity, Quality, Potency - No fillers, binders, preservatives, artificial colors or flavors. No gluten, egg, peanuts, tree nuts, or magnesium stearate.

Codeage Liposomal L-glutamine powder supplement provides high-quality, free-form L-glutamine, an amino acid to help support healthy gut function, immune system health, athletic performance, and muscle recovery after workouts.* It comes with a high dose of 5000 mg of l-glutamine powder per serving.

The liposomal delivery system helps to support glutamine absorption and the bioavailability of L glutamine amino acids.*

Codeage Liposomal L-glutamine+ supplement is vegan, gluten-free, dairy-free, soy-free, and keto-friendly, making it a convenient and easy-to-use L-glutamine supplement powder for those with dietary restrictions. In addition, this glutamine powder contains no artificial flavors, colors, sweeteners, or preservatives.

L-Configuration Amino Acids: Crystalline free-form amino acids including L-arginine, and L-glutamine

Free Form Amino Acid Supplement: Requires no digestion; can be absorbed efficiently into bloodstream

Brain Health Supplement: Amino acids with broad application for mental and physical functions

Immune & Digestive Support: Supports immune and digestive system health following physical stress, and restores plasma glutamine levels depleted by physical stress.*

Genestra Brands is a leading-edge line of professional grade nutraceuticals that has helped people restore, rebuild and maintain their health for 30 years.*