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THORNE L-Glutamine Powder - Glutamine Powder for GI Health and Immune Function - 18.1 Oz

4.6 4.6 out of 5 stars 481 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in L-Glutamine Nutritional Supplements by THORNE

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About this item

  • Muscles: Supports muscle recovery after exercise or injury*
  • Multiple Benefits: Promotes GI and nerve health and healthy immune function*
  • Wound Healing: Nutritional support for wound and burn healing*
  • Free From: Every Thorne product is made with the purest possible ingredients - without gluten or other major allergens (eggs, tree nuts, peanuts) This product also contains no soy, dairy, shellfish, or fish
  • Thorne's commitment to integrity and science-backed products has helped us earn the trust of thousands of health-care professionals, U.S. National Teams, the Mayo Clinic, and families around the world

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Product Description

L-Glutamine Powder

L-glutamine is an amino acid that supports a healthy intestinal lining and immune function, and assists in healing after injury or surgery and in muscle cell repair.* NSF Certified for Sport.

NSF Certified

Well-Researched Benefits

Purest Ingredients

Thorne Bestseller

NSF Certified

L-Glutamine Powder is NSF Certified for Sport.

Well-Researched Benefits

L-glutamine is an amino acid that supports a healthy intestinal lining and immune function, and assists in healing after injury or surgery and in muscle cell repair.*

Purest Ingredients

There are no unnecessary fillers or additives in Thorne supplements. Thorne is committed to providing high-quality supplements that contain research-backed ingredients, in efficacious amounts, that retain the potency to meet label claims until the day of expiration.

Thorne Bestseller

Thorne has been trusted by health-care practitioners, U.S. National Teams, and families around the world for more than 30 years. Thorne Bestsellers are a testament to Thorne's mission to provide high-quality supplements that are tested for quality, safety, and efficacy.

GI Support

The gut isn’t just the stomach. The gut is the entire digestive tract (from the mouth to the rectum) and is a complex mix of organs, microbes, hormones, and enzymes. How this complex mix of organs interacts dictates how well you will absorb the foods you eat. So what happens or doesn’t happen in your gut will inevitably impact your daily lifestyle. Because the digestive tract delivers the nutrients we eat to our bodies, there are many steps we can take to make sure we reap the full reward from these nutrients in terms of absorption, especially if someone is prone to gas, bloating, acid reflux, constipation, or other distress after eating. Optimal functioning of the gastrointestinal tract is vital to nutrient absorption, nutrient synthesis, the production of short-chain fatty acids for colon health, the elimination of waste, and proper immune function. An unhealthy diet, insufficient digestive enzymes, and taking various prescriptions can cause imbalances in the gut flora. That’s why supplementation is important, and it's is why Thorne offers well-researched, high-quality supplements that support a healthy gut.

Innovative Solutions

When the highest standards have been met, Thorne creates higher ones.

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Sourcing Exceptional Ingredients

We develop better standards for higher quality ingredients. Thorne cares deeply about where our ingredients come from. We partner only with suppliers whose practices emphasize quality, science, and responsibility. Better ingredients means better potency, absorption, and digestibility - and ultimately better health.

Manufacturing the Right Way

We manufacture our own products to ensure full supply chain transparency. For more than 30 years, we have invested in clean manufacturing practices. We refuse to use ingredients that can inhibit absorption. We perform our final production in the United States. Our Charleston, SC facility is third-party certified.

Four Rounds of Testing

We run four rounds of testing for each of our products. We have invested in two state-of-the-art in-house laboratories that allow us to conduct four rounds of testing, while most competitors test only one or two times. We test our raw materials, in-process batches, finish products, and product stability for each product.

Thinking Sustainably

We're thinking sustainably to protect our environment. We believe the environment should never be compromised for the sake of business gain. At Thorne, we believe that doing our part to protect the environment and its most valuable resources goes hand in hand with our product quality standards.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 4.74 x 4.74 x 5 inches; 1.23 Pounds
  • Item model number ‏ : ‎ SA519
  • Date First Available ‏ : ‎ April 21, 2006
  • Manufacturer ‏ : ‎ Thorne Research
  • ASIN ‏ : ‎ B000FGWDL8
  • Customer Reviews:
    4.6 4.6 out of 5 stars 481 ratings

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THORNE L-Glutamine Powder - Glutamine Powder for GI Health and Immune Function - 18.1 Oz
THORNE L-Glutamine Powder - Glutamine Powder for GI Health and Immune Function - 18.1 Oz
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Price$63.00$38.95$38.95-32% $13.49
List:$19.95
$32.80$18.14
Price Per Unit$3.48 / Ounce$1.11 / Ounce$3.68 / Ounce$1.53 / Ounce$2.95 / Ounce$1.71 / Ounce
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Value for money
4.4
4.6
4.2
4.8
4.2
Easy to swallow
4.3
4.7
4.4
4.3
4.2
Flavor
4.0
4.3
3.8
4.2
3.6
Ingredient quality
4.3
4.5
4.1
Sold By
Pattern.
Type Zero Health
Amp Human
eSupplements
Pattern.
Amazon.com
keyword type
l-glutamine-nutritional-supplements
l-glutamine-nutritional-supplements
l-glutamine-nutritional-supplements
l-glutamine-nutritional-supplements
creatine-nutritional-supplements
l-glutamine-nutritional-supplements
form
Powder
Powder
Powder
Powder
Powder
Powder
flavor
Unflavored
Unflavored
Unflavored
Unflavored
Unflavored
size
90 Servings (Pack of 1)
200 Servings (Pack of 1)
60 Servings (Pack of 1)
50 Servings (Pack of 1)
60 Servings (Pack of 1)
10.58 Ounce (Pack of 1)
weight
1.23 pounds
1 kilograms
0.43 kilograms
0.55 pounds
0.69 pounds
0.08 pounds
age range
Adult
Adult
Adult
Adult
Adult
Adult
product benefit
Nutritional Support
Support Digestive Health, Improves Stomach Health, Supports Muscle Growth, Immune Support
Gut Health Support
Muscle Growth,Strength
Muscle Growth

Important information

Safety Information

Allergy warning: This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients. This product also does not contain lactose, palmitic acid, or magnesium, calcium, or vegetable stearates. Pregnancy warning: If pregnant, consult your health-care practitioner before using this product. Interactions /Contraindications: There are no known adverse interactions or contraindications at the publication date.

Indications

Muscle Support, GI Support

Ingredients

One Scoop (5.7 g) Contains: L-Glutamine 5 g. Other Ingredients: None

Directions

Mix 1 scoop with at least 8 ounces of water, juice, or preferred beverage daily or as recommended by your health-care practitioner. Servings Per Container: 90

Legal Disclaimer

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. Please contact your healthcare professional immediately if you experience any unwanted side effects. The information contained herein is for informational purposes only and does not establish a doctor-patient relationship. Please be sure to consult your physician before taking this or any other product.

Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

Looking for specific info?

Customer reviews

4.6 out of 5 stars
4.6 out of 5
481 global ratings

Customers say

Customers like the effect of the supplement on their gut, saying it helps to heal and soothe their tummy. They also say it's excellent for gut health and healing the inside of the GI tract. Customers also appreciate the taste, saying the nutritional supplement has no taste and is easy to digest. They describe the quality as top-notch in fresh best quality. Customers say the product is very effective and useful. However, some customers report side effects such as nausea and migraines. They are also disappointed with the seal.

AI-generated from the text of customer reviews

25 customers mention25 positive0 negative

Customers say the supplement helps heal their gut, soothe their unhappy tummy, and improve their health. They also say it provides amazing relief for acid reflux and stomach pain. Customers also mention that it helps people with celiac disease and helps them poo on the regular.

"Not sure if I notice a difference or not but no side affects." Read more

"...gum, Dgl and zinc carnosine they all together seem to have healed the gut a lot...." Read more

"...that is hard on the gut and this product has really helped soothe my poor unhappy tummy. It barely has a taste...." Read more

"I started seeing way less bloating and had little to no gas issues within a week or so after starting to use this consistently...." Read more

13 customers mention10 positive3 negative

Customers like the taste of the nutritional supplement. They say it has barely any taste, is flavorless, and is easy to digest. Some customers also mention that it's easy to drink and swallow.

"...It barely has a taste. I take it on an empty stomach 20 minutes before eating...." Read more

"...It dissolves well in water and is pretty tasteless, so it's easy to swallow. I take it every morning in a cup of water before breakfast...." Read more

"Has no flavor and is easy to drink. Does take a little bit to mix in just have to keep your spoon near lol...." Read more

"...Flavor-wise it tastes like Alka-seltzer.. I usually just mix with some sort of drink that will mask the flavor...." Read more

12 customers mention12 positive0 negative

Customers are satisfied with the quality of the health personal care product. They mention that it is top-notch in fresh best quality.

"Incredible product. I had Lyme and leaky gut and Candida overgrowth and pylori, and lots of brain fog...." Read more

"...It is fantastic. Love the quality of thorne products." Read more

"Product came as promised and is very high quality. Happy with purchase" Read more

"...Pure quality and has no taste when mixing, I put it in my smoothies or in water. Completely tasteless and blends almost immediately...." Read more

10 customers mention7 positive3 negative

Customers like the performance of the product. They say it is very effective, works better than any other brand, and is very useful.

"I've used this product for years to help with gut issues. It is fantastic. Love the quality of thorne products." Read more

"...a different in my digestion within two days of starting this - it really works...." Read more

"...The product didn't work for my body but the customer service experience made up for it!" Read more

"Virtually tasteless and works better than any other brand I've tried." Read more

4 customers mention4 positive0 negative

Customers appreciate the value of the product. They mention that it's expensive but worth it.

"I love everything about this product. It’s definitely worth every penny." Read more

"...It’s expensive but worth it, give it a try." Read more

"I love the Thorne brand! This supplement is worth the money...." Read more

"does its purpose...good price" Read more

6 customers mention0 positive6 negative

Customers are dissatisfied with the pain relief provided by the product. They mention that it makes them feel nauseous, cramps, and sick. Some say that the product also causes severe nausea and migraines.

"...cravings...while it certainly curbed my cravings it also caused severe nausea and migraines...." Read more

"...I was recommended this product by a dietitian but this made my stomach cramp soooo bad...." Read more

"...I took one scoop in 1 quart of water and I had some of the worst pain in my gut soon after...." Read more

"Made me feel sick. Can’t be returned." Read more

4 customers mention0 positive4 negative

Customers are dissatisfied with the seal of the health personal care product. They mention that it was broken upon arrival, had several puncture holes, and was leaking.

"...There were several small punctures in the seal under the cap, despite the plastic wrap still being on...." Read more

"Seal under had several puncture holes into product had to return." Read more

"Leaky gut miracle..." Read more

"Seal was broken upon arrival..." Read more

Leaky gut miracle
5 Stars
Leaky gut miracle
Incredible product. I had Lyme and leaky gut and Candida overgrowth and pylori, and lots of brain fog. I’m taking many different supplements and herbs to combat Lyme but when I started taking this l glutamine , before the Lyme Herbs when I was trying to first get Candida and h pylori under control this worked like magic. My brain fog started to recede and I was able to remember things more. Short term memory restored. I am taking it every morning and evening 1 scoop with gastromend it’s another product recommended by my doctor. It has mastic gum, Dgl and zinc carnosine they all together seem to have healed the gut a lot. And that is very import also due to Lyme I’ve got terrible muscle inflammation and this seems to help. The only drawback is water retention. So just be prepared you might puff up. Sending you blessings for speedy recovery 💕
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Top reviews from the United States

Reviewed in the United States on December 17, 2023
Reviewed in the United States on November 17, 2020
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5.0 out of 5 stars Leaky gut miracle
Reviewed in the United States on November 17, 2020
Incredible product. I had Lyme and leaky gut and Candida overgrowth and pylori, and lots of brain fog. I’m taking many different supplements and herbs to combat Lyme but when I started taking this l glutamine , before the Lyme Herbs when I was trying to first get Candida and h pylori under control this worked like magic. My brain fog started to recede and I was able to remember things more. Short term memory restored. I am taking it every morning and evening 1 scoop with gastromend it’s another product recommended by my doctor. It has mastic gum, Dgl and zinc carnosine they all together seem to have healed the gut a lot. And that is very import also due to Lyme I’ve got terrible muscle inflammation and this seems to help. The only drawback is water retention. So just be prepared you might puff up. Sending you blessings for speedy recovery 💕
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Reviewed in the United States on February 20, 2024
Reviewed in the United States on October 30, 2015
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Reviewed in the United States on July 10, 2023
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Top reviews from other countries

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5.0 out of 5 stars It helps!
Reviewed in the United Kingdom on March 23, 2023
5 people found this helpful
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Disclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Amazon.com assumes no liability for inaccuracies or misstatements about products.