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  • Source Naturals L-Glutamine Powder, 16 Ounce
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Source Naturals L-Glutamine Powder, 16 Ounce


List Price: $40.98
Price: $24.89 ($1.56 / oz) & FREE Shipping on orders over $35. Details
You Save: $16.09 (39%)
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16 Ounce
  • A free-form amino acid
  • Can be converted to glutamic acid
  • Glutamic acid is a precursor to the important inhibitory neurotransmitter GABA (gamma amino butyric acid)
  • Also plays an important role in ammonia disposal
  • Available in Powder form or 500 mg tablets and capsules
21 new from $18.67 1 open box from $18.43

Frequently Bought Together

Source Naturals L-Glutamine Powder, 16 Ounce + Great Lakes Gelatin, Collagen Hydrolysate (Kosher) 16-Ounce
Price for both: $46.38

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Important Information

Safety Warning
If you are pregnant or breastfeeding, consult your health care professional before using this product. Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

Directions
Suggested Use: 1/4 to 1/2 teaspoon daily between meals, in liquid or dissolved under the tongue, or as recommended by your health care professional.

Legal Disclaimer
These statements have not yet been evaluated by the United States Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. Please see our full disclaimer below.

Product Description

Size: 16 Ounce

Amino acid supplement. L-Glutamine, a free-form amino acid, can be converted to glutamic acid. Glutamic acid is a usable energy source for the brain and a pre-cursor to the important inhibitory neurotransmitter, GABA (gamma-aminobutyric acid). L-Glutamine also plays an important role in ammonia disposal. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.) Suitable for vegetarians and hypoallergenic: contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

Product Details

Size: 16 Ounce
  • Product Dimensions: 5 x 4.8 x 4.8 inches ; 1 pounds
  • Shipping Weight: 1.2 pounds (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • ASIN: B000GFHPFW
  • UPC: 021078015482
  • Item model number: SN1548
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (55 customer reviews)
  • Amazon Best Sellers Rank: #16,461 in Health & Personal Care (See Top 100 in Health & Personal Care)
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Customer Questions & Answers

Customer Reviews

It dissolves easily in water and tastes ok.
Barbara Pontecorvo
All my online research about IBS and other forms of colitis, recommend l-Glutamine for healing the intestines.
Sussi G.
This product definitely works - I notice a clear difference.
Clasina Gm Oneill

Most Helpful Customer Reviews

120 of 121 people found the following review helpful By AndreaP. on November 18, 2011
Size Name: 16 Ounce Verified Purchase
I can't say enough good things about this product. First, I use a lot of Source Naturals products, and in my experience, they are always of high quality at a very reasonable price.

Now as to why I'm taking this supplement...I'm working on recovering from chronic fatigue syndrome caused by leaky gut and gut dysbiosis (severe Candida infection for the last several years). I've read that people take 15-20 g of this a day to heal the gut. I started taking it on an empty stomach before meals, and the effects have been life-changing; and, no, I'm not being dramatic. It turns out that during times of stress, glutamine in the skeletal muscle can become depleted by up to 50% (perhaps even more based on some statistics I've read). The body needs glutamine to fuel immune cells and to repair tissues; the liver needs glutamine for detoxification, etc. So the body snags from skeletal muscle the glutamine that it needs. Although the body is able to make glutamine from other amino acids in the diet, during periods of prolonged stress (like chronic infection or disease), the diet simply is unable to provide a sufficient supply. This has certainly been true in my case. I seem to eat and eat all day long, but it's never enough for all the repair that is going on inside my body - yet I still have no energy. It's frustrating. This product has changed that. I'm not miraculously cured or anything like that, but it has certainly made a big difference in my quality of life as I continue to recover. I've got a lot more energy now, much less muscle aches, less difficulty digesting, and less allergies after eating. I am able to sleep through the night without waking due to hypoglycemia, and I no longer wake in the morning with muscle pain and fatigue. In short, I just feel a heck of a lot better.
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57 of 59 people found the following review helpful By Sussi G. on April 21, 2011
Size Name: 16 Ounce Verified Purchase
All my online research about IBS and other forms of colitis, recommend l-Glutamine for healing the intestines. It helps restore the lining. After my original diagnosis, I started using this brand of L-glutamine daily, and it helped immediately.

It also cuts down on sugar cravings. You can't beat that!
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46 of 54 people found the following review helpful By N. Sanchez on August 22, 2010
Size Name: 16 Ounce Verified Purchase
Considering that this product is only so much money it is very well worth the price but let me tell you about what it does. I'm a bodybuilder only a teen though. Glutamine in my experience helps recover so much faster. I don't know how to explain in how it does that but I feel much more energized. Not so much like caffeine energy but it even helps me foucslike doing simple things like driving, and become alert as it is a Neuro-transmitter.

Another important thing to note is that if you live in the U.S or in the western side of the world then this may benefit you highly since most foods on the western side are acidic. Glutamine ups the alkaline reserves in your body so you don't metabolize your muscles, and have and acidic ph level in your system.

In the end this is great product. I've felt better by using it, but I don't know how much muscle growth I really got helped from it since muscle growth is great there is no real way to shrink my muscles and re-test.
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29 of 34 people found the following review helpful By axpress on March 28, 2009
Size Name: 16 Ounce
This has to be the best L-Glutamine on the market! I feel it's effects immediately after taking it. Source Naturals L-Glutamine is more potent (pure) than Vitamin Shoppe's L-Glutamine (I tried them both). This product not only helps out with my muscles, but it also calms me down as L-Glutamine works as a natural tranquilizer.
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14 of 15 people found the following review helpful By arieschild on June 14, 2011
Size Name: 16 Ounce Verified Purchase
I have been using this for over a year along with buffered Vitamin C powder with mineral ascorbates for IBS. This product is the best L-glutamine I have tried. It does heal my colon and calms my mucles after heavy workouts as well. Will use this from now on.
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22 of 26 people found the following review helpful By theSaw on May 7, 2010
Size Name: 16 Ounce Verified Purchase
This stuff seems to make me really sleepy. If I take it before going to bed, I sleep a few hours longer than usual. Some say that this is a pre-workout suppliment - claiming it helps offset your depleted l-glutamine levels, allowing you to workout with more energy. Others say it is a post-workout suppliment, and it should be taken within 2 hours of going to bed to increase human growth hormone levels while you sleep. It's also supposed to keep muscle cells from being broken down, so you could take it on days that you don't workout to prevent catabolic processes.

I got it mainly to enhance recovery times. I haven't strained myself enough to notice any difference, though. Judging by how sleepy it makes me, I think that it works. Just remember that it doesn't take much to take an effect. They say you only need 2-5grams per serving. This was the best deal I could find on this stuff.
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14 of 17 people found the following review helpful By shred betty on November 12, 2011
Size Name: 16 Ounce Verified Purchase
I was suggested this product in Jonny Bowden's book, Most Effective Natural Cures. This product is favorless and as I've been taking it regularly, I have found that my normal triggers (spicy food, acidic foods) are no longer bothering my stomach. I highly suggest anyone suffering from a stomach ulcer to begin using this product regularly.
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10 of 12 people found the following review helpful By MAP on March 18, 2010
Size Name: 16 Ounce Verified Purchase
It blends nicely with any drink. I use it with the rest of my supplements at least 2x/daily to aid with muscle growth/recovery from my strength & cardio workouts.
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Most Recent Customer Reviews

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.