Best Glutamine Amino Acid Supplements of 2025

Boost your immune function with these amino acid supplements from NOW. Glutamine is a conditionally essential amino acid that your body may require more of than it can produce, especially during recovery. These capsules help maintain healthy nitrogen balance and act as a major nitrogen transporter in your body. Additionally, they are Halal, non-gmo, kosher, dairy-free, egg-free, made without gluten, nut-free, soy-free, vegan, and vegetarian. The NPA A-rated GMP certification ensures that the manufacturing process has been examined in every aspect, including laboratory/testing methods for stability, potency, and product formulation. These capsules are packaged in the USA by a family-owned and operated company since 1968. Please note that exposure to heat or sunlight may lead to melting/damage of the product, so customers are expected to be available during the delivery. During summer months, products may arrive warm, but Amazon stores and ships products in accordance with manufacturers' recommendations.

Recover faster after exercise and maintain your gastrointestinal and immune system health with Thorne L-Glutamine supplement. This amino acid supplement helps repair muscle cells and improves gut permeability and barrier function. It also restores plasma glutamine levels depleted after physical stress and supports wound healing. Thorne Research, the brand behind this supplement, is trusted by over 100 professional teams and is the only supplement manufacturer to collaborate with Mayo Clinic on wellness research and content. Thorne is also a proud partner of the U.S. Olympic Teams.

NOW L-Glutamine is a double strength amino acid supplement that provides 1,000 mg of L-Glutamine per capsule. It is a nitrogen transporter that plays a crucial role in maintaining a healthy nitrogen balance in the body. This supplement is ideal for athletes at every level, as it is comprehensively tested for purity and effectiveness. With NPA A-rated GMP certification, you can trust that every aspect of the manufacturing process has been examined to ensure quality. The capsules are packaged in the USA by a family owned and operated company. NOW L-Glutamine offers convenience and peace of mind for those seeking to support their athletic performance and overall well-being.

XTEND BCAA Powder Watermelon Explosion is the perfect recovery drink for men and women who want to improve their muscle recovery and growth. It contains 7 grams of BCAAs in the nature-designed and research-proven 2:1:1 ratio, glutamine, and citrulline malate. This sugar-free, zero-calorie, and zero-carb drink mix also contains hydration-inducing electrolytes that help you stay hydrated during workouts. It is tested and trusted by third parties, making it safe for athletes and free of banned substances prohibited in sports. And with its delicious watermelon explosion flavor, you'll enjoy every sip of it.

NutraBio L-Glutamine Powder is a muscle recovery supplement that contains 5000mg of pure unflavored glutamine per serving. It is HPLC lab tested to ensure potency and naturally fermented 100% L-Glutamine manufactured in the USA. This product features fully transparent labels with no proprietary blends and contains no fillers or manufacturing excipients. It is also certified kosher, non-GMO, gluten-free, hypoallergenic, and suitable for vegetarians.

NOW Sports L-Glutamine Powder is a high-quality amino acid supplement that is designed to support athletes at every level. This pure powder is comprehensively tested to ensure its purity and effectiveness. The nitrogen transporter feature of this supplement helps maintain a positive nitrogen balance, which is crucial for active individuals. It also aids in the production of rapidly growing cells, helping to offset the stress from physical exertion. Additionally, it helps regulate the body's pH levels, supporting overall fitness and homeostasis. With immune support benefits, this powder is great for both pre- and post-workout use. Packaged in the USA by a family-owned and operated company, NOW L-Glutamine Powder is a trusted choice for athletes seeking a high-quality supplement.

Recover faster after intense workouts with Optimum Nutrition L-Glutamine Capsules. This product is packed with 1000 milligrams of pure L-Glutamine per 2 capsules. As the most abundant amino acid in the body, L-Glutamine plays a vital role in muscle protein development. During prolonged periods of intense exercise, L-Glutamine levels may be depleted, making this supplement a must-have for fitness enthusiasts. Plus, the package comes in two sizes - 120 count and 240 count, giving you flexibility in your purchase. Please note that exposure to heat or sunlight may lead to melting/damage of the product. However, Amazon stores and ships products in accordance with the manufacturer's recommendations, ensuring that you receive a high-quality product.

Boost your metabolism, support your immune and digestive system, and promote lean muscle mass with Pure Encapsulations L-Glutamine Supplement. This supplement is packed with l-Glutamine, the most abundant amino acid in the body, which is essential for tissue repair and gastrointestinal tract support. The supplement also nutritionally supports the mucosal lining and healthy functioning of the gastrointestinal tract. Additionally, l-Glutamine helps promote and preserve lean muscle mass. Pure Encapsulations supplements are made with only premium ingredients sourced from trusted suppliers and are free from wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives.

Best Aminos by BPI Sports is a powerful BCAA powder post-workout recovery drink designed for both men and women. It contains branched chain amino acids (BCAAs) that can help increase your strength, boost endurance, and improve overall performance when taken before your workout. Additionally, Best Aminos includes glutamine, which supports the recovery process and helps prevent muscle breakdown. This product utilizes oligopeptide-enzymatic technology, optimizing absorption for maximum benefits. Unlike most aminos, BCAAs are metabolized in skeletal muscle, effectively preventing catabolism and providing fuel for your body. With Best Aminos, you can enhance your workout recovery, strength, power, and endurance.

Forzagen BCAAS Powder is a sugar-free amino acids powder that provides essential amino acids for growth and recovery. This pre and post-workout supplement not only prevents muscle breakdown but also increases protein synthesis. With its easily absorbed powder form, it offers convenience and quick absorption compared to bulky tablets or capsules. Say goodbye to bulky branch chain amino acids capsules with Forzagen BCAAS Powder. It combines a premium protein blend in a great-tasting powder to help boost protein synthesis. Fuel your workouts and enhance muscle recovery with Forzagen BCAAS Powder.