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Sports Research® L-Glutamine Powder 5g, Unflavored (10.58oz)

  • Based on 893 reviews
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Availability: Only 10 left in stock, order soon!
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Arrives Monday, Oct 19
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Size: 10.58 Ounce (Pack of 1)


Features

  • L-GLUTAMINE POWERED BY SPORTS RESEARCH : Amino Acids are crucial in the process of building protein within the body. L-Glutamine is one of the most abundant amino acids in the human bodyhaving enough of it aids in your bodys protein synthesis*
  • WORKOUT RECOVERY, GUT & IMMUNE HEALTH: 1-2 daily scoops of pure L-Glutamine mixed into your favorite beverage, provides you with gut, immune and workout recovery support*
  • ONE DAILY SCOOP: One to two daily scoops of our fermented glutamine powder, mixed into your favorite beverage, provide you with a range of benefits you can see and feelespecially when combined with a regular workout routine*
  • DEDICATED TO QUALITY: Our L-Glutamine is made using a proprietary fermentation process, and a high-quality powder from a premium, trusted name made in the USAentirely vegan, Informed Sport tested for banned substances, gluten-free and non-GMO tested
  • THE SPORTS RESEARCH DIFFERENCE: Founded in Southern California in 1980, Sports Research is a family-owned business born from a passion for fitness and wellness. Our goal is to embrace the sport of life through research-backed products created for every bodyinside and out

Description

Our L-Glutamine is made through a 5-step purification process resulting in a high quality product to support gut health, immunity and workout recovery*. *When taking 2 scoops daily. Our 100% fermented L-Glutamine is made using a proprietary 5-step purification process, resulting in a high-quality fine powder that mixes easily into your favorite drinks, and your fitness routine. We strive to deliver exceptional quality, including our ingredients. Our single sourced L-Glutamine is free of artificial fillers or flavors and manufactured in the U.S. You can trust you’re taking a supplement that’s third-party tested and held to superior quality standards. Our L-Glutamine is Non-GMO and Informed Sport Tested, Vegan, Gluten-Free and cGMP Compliant. Creatine Monohydrate Omega 3 Fish Oil Sweet Sweat Whey Protein Organic MCT Oil Ashwagandha Plant Based Sleep Complex + Melatonin What is this product best used for? L-Glutamine is an Amino Acid that is crucial in building protein within the body and may provide immune and gut health support and aid in workout recovery What is the best way to consume this product? We like to add it to our shakes before a workout! It can be taken, however, with any of your favorite food or beverages. Is this L-Glutamine Vegan Certified, Gluten-Free, Non-GMO Tested? Sure is! It is Vegan Friendly, IGEN Non-GMO Tested, NSF Gluten-Free, and Informed Sport Tested for Banned Substances. Can men and women consume this product? Absolutely! This product is not marketed towards any gender and provides benefits for any and all healthy adults who maintain an active lifestyle. Is your Creatine Informed Sport tested? Yes! Our Creatine is informed Sport Tested for Banned Substances - a global testing program that assures athletes that products carrying the Informed Sport mark have been tested for prohibited substances and manufactured to high-quality standards.

Product Dimensions ‏ : ‎ 5.25 x 4 x 4 inches; 13.76 ounces


Item model number ‏ : ‎ FG388


Department ‏ : ‎ unisex-adult


Date First Available ‏ : ‎ September 23, 2023


Manufacturer ‏ : ‎ Sports Research


Best Sellers Rank: #11,297 in Health & Household (See Top 100 in Health & Household) #9 in L-Glutamine Nutritional Supplements


#9 in L-Glutamine Nutritional Supplements:


Customer Reviews: 4.7 4.7 out of 5 stars (893)


Brand Name: Sports Research


Primary Supplement Type: L-glutamine (fermented).


Item Form: Powder


Age Range Description: Adult


Container Type: Canister


Dosage Form: Powder


Model Name: See packaging


UPC: 023249091646


Item Highlight: Fermented L-Glutamine | Workout Recovery & Gut Health Support | Informed Sport, Vegan, Gluten-Free - 60 Servings


Manufacturer: Sports Research


Model Number: FG388


Manufacturer Part Number: FG388


Unit Count: 10.58 Ounce


Item Dimensions: 5.25 x 4 x 4 inches


Number of Items: 1


Flavor: Unflavored


Special Ingredients: L-glutamine (fermented).


Material Features: GMO Free, Gluten Free, Vegan


Allergen Information: Gluten Free, Non-GMO


Color: No Color


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Oct 19

This item is non-returnable:

Non-returnable due to Food safety reasons

View our full returns policy here.

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Top Amazon Reviews


  • Felt a huge difference on first use!
Size: 10.58 Ounce (Pack of 1)
Really great quality L-Glutamine. On the very first use, I felt a huge difference and feel so much better! It is completely unflavored and has a neat, sparkly crystal texture because it is 100% pure with no fillers. Very happy with it!"
Reviewed in the United States on July 25, 2026 by Preet

  • Good gut health results
Size: 1.1 Pound (Pack of 1)
I have used this product for about 3 months now and I can say that I definitely see improvement in my digestive tract. I'm pleased with its effectiveness. I does have a slight taste, but it is not offensive. I don't drink it in plain water, I put it in any other beverage though and it's fine.
Reviewed in the United States on May 25, 2026 by Diane Kimbrough

  • Quality product.
Size: 10.58 Ounce (Pack of 1)
I think this is a quality product. The product and the company have high ratings on my supplements app. Yes, it dissolves in water and doesn't clump, but after whipping with my frother the powder tends to settle back down to the bottom fairly quickly. It is tasteless with maybe a slight aftertaste on the back of the tongue. I will probably switch to adding this to yogurt or cereal or see if it works in my matcha. update, I think it added a very slight texture to my matcha, probably not noticeable to most people, I'm sensitive. I see this advertises for workout recovery, but I purchased for the gut health support. Hope it helps me! ... show more
Reviewed in the United States on April 22, 2026 by Jody

  • Great for muscle repair
Size: 10.58 Ounce (Pack of 1)
Im a CrossFitter and Sport Massage Therapist. I take this to help my muscle recovery since Im using my body on a daily basis. Much needed for an active lifestyle. I do feel some difference in my body. Its gonna be a subtle feel versus something you will feel right away. There is no taste and no smell and the texture is smooth silky powder. Its easy to use. Just one scoop I take first thing in the morning. This brand is always a great brand so value for the money is pretty good as the quality is good. ... show more
Reviewed in the United States on June 30, 2025 by Amazon Customer

  • Recommended
Size: 10.58 Ounce (Pack of 1)
I take L-Glutamine every morning and I’ve noticed it has worked well for me. I feel a real difference since I started using it
Reviewed in the United States on May 30, 2026 by Tatiana Chloe

  • L-Glutamine for gut support
Size: 10.58 Ounce (Pack of 1)
It’s definitely a lot for the amount you pay. I bought this mainly for gut support so I think it’s a little too early to tell if the advertised health benefits are working after a couple tries, but the powder dilutes well in any liquid. Taste is okay and looking at the ingredients, it’s a single-ingredient product so that’s reassuring. I’ve used other Sports Research vitamins before and quality is always top notch so I’m confident this will deliver as well. ... show more
Reviewed in the United States on December 9, 2025 by cassie

  • Good stuff
Size: 10.58 Ounce (Pack of 1)
Arrived quickly. Flavorless and ground small so easy to take in glass of water
Reviewed in the United States on August 8, 2026 by h robertson

  • Recomendable
Size: 1.1 Pound (Pack of 1)
Miras resultados enseguida pero si quieres resultados al mil debes cuidar tu alimentación comer sano, antes hiba a veces una vez al día al baño y ahora voy 3 veces
Reviewed in the United States on August 19, 2026 by VJ

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