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Best Glutamine Supplements Reviewed & Rated for Quality

last updated Mar 06, 2019

Glutamine is considered a non-essential amino acid. Amino acids are molecules used to build proteins and enzymes. L-glutamine is the most abundant that is essential for functioning. The human body creates it naturally; however, as we get older, it becomes difficult for the body to produce the recommended amount. Glutamine offers a variety of benefits as it encourages healthy muscle muscle repair and muscle tissue development.

Glutamine is the preferred energy source to help protect the immune system as well as protecting the digestive system. It performs on a cellular level as well. A healthy dose gives you the energy needed for intense workouts. Glutamine also helps with gastrointestinal health. It acts as an essential neurotransmitter for the brain as it enhances mood. In other words, glutamine benefits the body for a variety of reasons. Here is a look at our top choices for those interested in glutamine supplementation.

In a Hurry? The test winner after 8 hrs of research

icon
Optimum Nutrition
95.4/100 our score
Brand
96
Ease of Use
96
Safety Hazards
95
Product Purity
96
Protection
94
Optimum Nutrition
Why is it better?

5 grams of pure glutamine per serving

Instantized powder

4 sizes to choose from

GMP certified

200 servings per container

In a Hurry? Editors choice:
Optimum Nutrition
Test Winner: Optimum Nutrition
Researched Sources
30
Researched Sources
Reviews Considered
1600
Reviews Considered
Hours Researching
8
Hours Researching
Products Evaluated
10
Products Evaluated
Sorting Options
Brand Ease of Use Safety Hazards Product Purity Protection By Default
Rank
PictureProduct
Name
Rating
Shops
#1
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
95.4
Brand
96%
Ease of Use
96%
Safety Hazards
95%
Product Purity
96%
Protection
94%
Price Comparison Last Updated (19.05.19)
$16.46
#2
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
94.4
Brand
95%
Ease of Use
95%
Safety Hazards
94%
Product Purity
95%
Protection
93%
Price Comparison Last Updated (19.05.19)
$19.43
#3
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
93.4
Brand
94%
Ease of Use
94%
Safety Hazards
93%
Product Purity
94%
Protection
92%
Price Comparison Last Updated (19.05.19)
$11.96
#4
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
92.4
Brand
93%
Ease of Use
93%
Safety Hazards
92%
Product Purity
93%
Protection
91%
Price Comparison Last Updated (19.05.19)
$9.98
#5
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.4
Brand
92%
Ease of Use
92%
Safety Hazards
91%
Product Purity
92%
Protection
90%
Price Comparison Last Updated (19.05.19)
$11.24
#6
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.4
Brand
91%
Ease of Use
91%
Safety Hazards
90%
Product Purity
91%
Protection
89%
Price Comparison Last Updated (19.05.19)
$30.00
#7
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.4
Brand
90%
Ease of Use
90%
Safety Hazards
89%
Product Purity
90%
Protection
88%
Price Comparison Last Updated (19.05.19)
$16.15
#8
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
88.4
Brand
89%
Ease of Use
89%
Safety Hazards
88%
Product Purity
89%
Protection
87%
Price Comparison Last Updated (19.05.19)
$19.95
#9
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87.4
Brand
88%
Ease of Use
88%
Safety Hazards
87%
Product Purity
88%
Protection
86%
Price Comparison Last Updated (19.05.19)
$18.10
#10
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
86.4
Brand
87%
Ease of Use
87%
Safety Hazards
86%
Product Purity
87%
Protection
85%
Price Comparison Last Updated (19.05.19)
$14.99
In Depth Review Top 10
  • Optimum Nutrition
  • NOW Sports
  • BulkSupplements
  • Body Fortress
  • KAGED MUSCLE
  • Jarrow Formulas
  • MuscleTech
  • Nutricost
  • Pure Encapsulations
  • Evlution Nutrition
Table of contents
  • Criteria Used for Evaluation
  • Other Factors to Consider
  • Frequently Asked Questions
  • Sources

10 Best Glutamine Supplements

1. Optimum Nutrition

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
95.4
Optimum Nutrition
Brand
96
Ease of Use
96
Safety Hazards
95
Product Purity
96
Protection
94
best offer for today
$16.46
Pros:

5 grams of pure glutamine per serving

Instantized powder

4 sizes to choose from

GMP certified

200 servings per container

Cons:

Unpleasant taste

Expensive

Glutamine Powder by Optimum Nutrition is a very powerful glutamine supplement because it may help support muscle recovery from workouts and sports by providing vitamins and minerals that most bodybuilders need on a daily basis. This supplement powder mainly helps reduce rebuild muscle tissue while relieving muscle soreness. Furthermore, Optimum Nutrition supplement powder provides essentially 5 grams of unflavored glutamine which can also be added to protein shakes. Each bottle contains 300 grams of glutamine.

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GMP Certified

Every vendor must provide a Certificate of Analysis for all raw ingredients supplied. Certified analyses are done through independent laboratory testing and in-house. ON enforced a Hazard Analysis Critical Control Point program. As a continued measure, this process diminishes the chance for chemical, microbiological, and physical contaminants being added to ON supplements. Routine checks are performed for quality assurance on all production, storage, and blending areas, and daily inspections are conducted.

Comes Unflavored

Each serving of UN Glutamine Powder contains 5 grams of unflavored glutamine per serving. The powder is versatile as you can mix it in juice, protein shakes, or plain water. With 4 sizes available, 1000g, 600g, 300g, 150g, this supplement powder instantly dissolves in water.

Cost and Value

Optimum Nutrition has been manufacturing products that support the nutrition goals of athletes and individuals worldwide. ON strives to bring nutrition solutions with the purpose to making a difference in performance. For refunds, ON will refund the full price of the product within 14 days from receiving your refund notice. For exchanges, you can contact their customer service within 14 days from the date of delivery.

2. NOW Sports

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
94.4
NOW Sports
Brand
95
Ease of Use
95
Safety Hazards
94
Product Purity
95
Protection
93
best offer for today
$19.43
Pros:

Great for vegans

Natural ingredients

Kosher friendly

Tested product

Family owned and operated

Cons:

Chalky texture

Small doses of glutamine per serving

Containing just one ingredient, the NOW Sports glutamine powder is all about simplicity. It is GMP-certified, meaning that it was processed and manufactured under some of the strictest guidelines. The formula is non-GMO and Kosher, so it can be a good supplement for you if you are following a strict diet or are extremely careful of what goes in your body.

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Natural Ingredients

NOW Sports glutamine powder contains no salt, sugar, yeast, starch, corn, gluten, wheat egg, soy, milk, shellfish or preservatives. Ideal for vegans and vegetarians.

Reputable Company

NOW Sports is a company that provides, unadulterated, natural, high-quality products. All NOW Sports supplements are certified by a global quality assurance program called Informed-Sport. Consumers can be assured that any supplements they choose are effective and safe.

Cost and Value

NOW Sports strive to provide excellent customer service and top-rated quality products. Customer satisfaction is their company’s mission. Returns only apply to any products that are purchased from their website. Purchases made from retailer sites or other websites, or retail stores does not qualify. Consumers should consult the return policy from these sites.

3. BulkSupplements

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
93.4
BulkSupplements
Brand
94
Ease of Use
94
Safety Hazards
93
Product Purity
94
Protection
92
best offer for today
$11.96
Pros:

Inexpensive

Micronized

GMP manufacturer

Pure glutamine

Tested product

Cons:

Non-tested

No scoop

The BulkSupplements glutamine powder boosts muscle resilience against the build-up of lactic acid to help stop soreness and pain associated with it. Plus, it rejuvenates muscle cells that have undergone a vigorous workout, to help you to complete any exercise routine.

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Helps With Energy and Endurance

Intense activity significantly depletes the glutamine stores in the body. Studies suggest that glutamine supplementation, such the the BulkSupplements powder, can increase the body’s energy levels. This results in more effective, longer workouts. Glutamine help with the body’s ability to maintain muscle strength.

Quality Ingredients

The BulkSupplements powder contains no dairy, yeast, sugar, additives or gluten. It features a 2:1:1 BCAA ratio. It is one of the top-ranked supplements for its ingredient safety and purity. The one major ingredient is creatine monohydrate. The creatine is micronized. This means that the texture is fluffy and disperses more easily in water versus regular creatine.

Cost and Value

BulkSupplements comes in a variety of sizes - 100 grams to 25 kilograms. As the name suggests, it is recommended to purchase this supplement in larger quantities. The price is what you make it. For returns, BulkSupplements accepts unopened products within 30 days from the date of invoice for a full refund. The company does not issue refunds for opened items. Customers are responsible for return and shipping charges.

4. Body Fortress

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
92.4
Body Fortress
Brand
93
Ease of Use
93
Safety Hazards
92
Product Purity
93
Protection
91
best offer for today
$9.98
Pros:

Usage as a pre and post workout

4500 mgs of glutamine

No artificial colors

No artificial flavors

No GMOs

Cons:

Unpleasant smell

Does not dissolve effectively

Body Fortress is a glutamine supplement containing an amino acid that is found in muscle tissue. This helps with supporting lean muscle gain. This glutamine powder is currently one of the company’s high-ranking products, and was noted for being the purest glutamine supplement on the market.

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The Ultimate Recovery Fuel

Body Fortress glutamine powder helps you to maintain your activity by sustaining high levels of the amino acid to help assist with muscle recovery.

Created By a Reputable Brand in the Industry

Body Fortress specializes in manufacturing weightlifting supplements and premium bodybuilding supplements at a reasonable price. Their range consist of RTDs, protein powders, creatine HCI, and pre-workout powders. The company is known for their current best sellers, including whey protein powders.

Cost and Value

This powder comes in serving sizes of 4.5 g and 300 grams of powder per container. Body Fortress provide enough supplement for an estimated 2 months of use with 1 serving per day. Even with 2 servings, this supplement is perfect enough for a 1-month supply.

Between the low cost per serving, highly rated reviews, and a high purity rating, It is no surprise that Body Fortress is among the top glutamine supplement brands in the market. The company accepts returns for a limited period of time if you are not satisfied with an item. You can return the unused portion of the product for a refund.

5. KAGED MUSCLE

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.4
KAGED MUSCLE
Brand
92
Ease of Use
92
Safety Hazards
91
Product Purity
92
Protection
90
best offer for today
$11.24
Pros:

Rapid muscle recovery

Fights fatigue

Transparent labeling

Plant sourced ingredients

Made in the U.S.

Cons:

Not easily dissolved

No flavor

Kaged Muscle glutamine powder is straight up, pure glutamine. It contains 5 grams per scoop. Unlike ordinary glutamine, this powder is fermented, supposedly making it biologically available for absorption and easily digestible. This supplement is also derived from vegan sources.

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Plant Sourced

Kaged Muscle is an all-vegan supplement containing plant sourced ingredients, making it one of the purest form of supplements available. It’s not derived from bird feathers, human hair, or pig fur like cheaper supplements on the market. All ingredients that goes into their products are developed in the USA.

Transparency

Each container of KAGED MUSCLE glutamine powder has a 100% ingredient transparency. You will know exactly what is going into your body. This formula does not contain impurities and is gluten free. Does not contain heavy metals, and hidden toxins.

Cost and Value

The label claims that KAGED MUSCLE is MicroPure quality guaranteed. It is free of illegal substances and stamped with a gold standard seal. This company went out of their way to create a supplement unlike any other.Their patented ingredients to their manufacturing, makes this product different from the others. For those who like to train heavily, this is a great supplement. For returns, if you are not happy with a product, the company offer a 30-day money back guarantee or you can exchange it. Contact their customer support team for more details.

6. Jarrow Formulas

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.4
Jarrow Formulas
Brand
91
Ease of Use
91
Safety Hazards
90
Product Purity
91
Protection
89
best offer for today
$30.00
Pros:

Pure glutamine

Supports immune function

Protect muscle tissue

No gluten

Powder form

Cons:

Caused digestion reaction with some consumers

No flavor

Jarrow Formulas' company mission is reflected in its motto of superior formulation and nutrition. The company provides a complete line of nutritional supplements, all featuring quality standards of potency and purity value.

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Microbiological Fermentation

Jarrow Formulas glutamine powder is developed by using microbiological fermentation. This product contains 100% glutamine and uses no other substances. Contains no glutens, no wheat, no dairy, no soybeans, no fish/shellfish, no eggs, and no nuts. Product is suitable for vegans and vegetarians and is non-GMO.

Developed Using Scientific Data

Working toward a mission of providing affordable, effective, cutting-edge formulations based on scientific research. Jarrow Formulas' knowledgeable staff works closely with researchers from academic institutions and universities around the world. Jarrow Formulas strives to offer the highest quality of products to customers for optimal health.

Cost and Value

For returns, if you are unhappy with an eligible product, you can return the product and request a full refund of the purchase price or a credit in the amount of the purchase price. This process has to be done within 60 days from delivery. Eligible purchases include purchases made on the company’s website or Jarrow Formulas webpages that is linked to the company website. Or you can request an exchange of an eligible product.

7. MuscleTech

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.4
MuscleTech
Brand
90
Ease of Use
90
Safety Hazards
89
Product Purity
90
Protection
88
best offer for today
$16.15
Pros:

HPLC tested

5 grams per serving

Non-stimulant

Dissolves instantly

Money back guarantee

Cons:

Few customers did not notice results

Flavorless

MuscleTech glutamine powder contains 5 grams of glutamine per serving. This works to replenish the glutamine used during exercise. This product is marketed as a micronized, ultra-pure, HPLC tested glutamine supplement which is also available in tablet form.

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cGMP Certified

MuscleTech has put a lot of effort into making certain the ingredients listed on their label match to what’s actually inside the supplement. It is reassuring to know that this product is cGMP and HPLC certified.

Mixes With Your Favorite Drink

Platinum 100% glutamine powder mixes instantly with liquids and is tasteless. Contains no gritty or settling texture. This powder supplement is ideal for mixing with your favorite pre-workout, creatine, or protein drink – making it an effective way to boost your glutamine levels as you enjoy your favorite flavored supplements! Plus, this non-stimulant supplement formula can be used anytime, day or night.

Cost and Value

To ensure a standard of purity and quality, each container goes through a strict Quality Control process. It is verified and tested to make sure that each product meets the Muscle Tech’s high standard of consistency, quality, and purity. For returns, you can exchange or return the unused product within 30 days for a complete refund, minus handling and shipping charges.

8. Nutricost

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
88.4
Nutricost
Brand
89
Ease of Use
89
Safety Hazards
88
Product Purity
89
Protection
87
best offer for today
$19.95
Pros:

Unflavored when mixed with juice and shakes

Aids with acid reflux

Helps improve weak muscles

Affordable

Made in the USA

Cons:

Texture is chalky

Funny taste when mixed in water

Nutricost glutamine powder was designed to refuel the body with non-essential amino acids. This is a high quality supplement, suitable for people who are looking to boost their digestive health, immune system, and help with muscle recovery. This glutamine supplement is free of gluten, is non-GMO, and provides excellent value for the money.

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Made in the USA

Made in the United States at a GMP facility, each serving offers 5 grams of glutamine at a fraction of the price of their capsules. Manufactured at GMP compliant facilities.

Reputable Brand

Nutricost is considered one of the largest well-known nutrition companies in the United States. They develop products to help with immune support, cognitive support, and heart health. Their approach of providing affordable quality supplements has earned recognition - together with hundreds of positive rated reviews. Some of their best sellers are citrulline Malate 2:1, pure glutamine powder, and Vitamin C powder.

Cost and Value

Nutricost has the same similarity to Bulk Supplements in the sense that it manufactures single-ingredient products. However, they also have a wider range of supplements that extends beyond just nutrition for immune support, heart health, digestive support, and much more. For returns, Nutricost offers a 100% money back guarantee if you are not satisfied with your product. Their offer applies only for one used product.

9. Pure Encapsulations

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87.4
Pure Encapsulations
Brand
88
Ease of Use
88
Safety Hazards
87
Product Purity
88
Protection
86
best offer for today
$18.10
Pros:

Recommended for all people

Tablet formulation

Great for long-term use

Hypo-allergic

Non-GMO

Cons:

Comes in pill form

Caused a reaction with some consumers

Manufactured by Pure Encapsulations, Glutamine 500 mg provides the body the amino acid in a convenient pill. Every capsule contains free-form glutamine and vitamin C for promoting easy absorption in the body.

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Vegetable Sourced

This supplement is sourced from vegetables and can be taken with water or juice. You do not have to mix it with water as it comes in a tablet form. Dosages can vary for each person. For best results‚ it is recommended to be taken in 2 to 3 doses during the day. Follow the advice of your health care physician if you have any questions about usage.

Hypo-allergenic

The company seeks to manufacture hypo-allergenic dietary supplements. Quality control during the formulation process is paramount. All Pure Encapsulations supplements are created with the most bio-available ingredients whenever possible.

Cost and Value

The supplement’s value lies in its no-fillers approach with no colors or flavors. It is a good solution for people who are seeking the quality of the nutrients which go into their bodies. Statements from suppliers certifies that the ingredients in their products does not contain GMOs. For some nutrients, the company conducts testing to verify the absence of genetically modified materials. For returns, products must be sent back to the company within 30 days. Any claims regarding damages or shortage are made within 7 days of delivery. Returns are subjected to a 15% return fee.

10. Evlution Nutrition

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
86.4
Evlution Nutrition
Brand
87
Ease of Use
87
Safety Hazards
86
Product Purity
87
Protection
85
best offer for today
$14.99
Pros:

Gluten-free

Pharmaceutical grade

Plant based formula

60 servings

Made in the US

Cons:

Do not dissolve well

Unflavored

Being a pharmaceutical grade is just one of the great facts about Evlution glutamine supplements. It is plant-based, making it ideal for vegetarians and vegans. This supplement is gluten-free, in which there are no other listed ingredients on the label.

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60 Servings Per Container

Each canister provides 60 servings. Each serving has 5 grams of glutamine. It comes with a scoop for measuring. At an affordable price, the supplement still manages to be a natural product. Even though the supplement can be taken at anytime, (preferably 2 to 3 times a day) it is created to optimize your glutamine levels during and after sports and workouts.

Dissolves Easily

Consumers reported feeling energetic when using this supplement. The various reviews on how easily dissolvable it is when mixed with liquids, you can add it to shakes for a tasty flavor versus adding it to a bottle of water.

Cost and Value

As far as value, the Evlution supplement will save you money versus some of the other supplements on the market. This is true if you will be using it for the long term. Evlution Nutrition provides a 30-day money-back guarantee for consumers. This glutamine supplement definitely offers value!

Criteria Used for Evaluation

Brand

A brand is crucial when making a purchasing decision. This is due to the overall impact it will make on a company. Branding changes how individuals perceive a product, as it can also encourage new business and increase awareness.

Branding Gets Recognition

Branding is important to a business because it is how companies get recognition and become well-known to consumers. The logo is an important component of company branding, as it represents the face of the company. A professional logo should be easily memorable and powerful - with the sole purpose of making an impression at first glance.

It Increases Business Value

An established brand increases value in a business by giving a company leverage in the industry. This makes it an appealing factor when trying to generate future business.

It Generates New Customers

A strong brand represents a reputable impression of the company among consumers. They are more likely to conduct business with a brand they are most familiar with. If a brand is well-established and trustworthy, people will be more apt to spread the word.

Creates Trust With Consumers

A well-strategized branding helps a company build trust with existing customers and potential ones. The public will most likely do business with a company that gives the impression of being experts in a particular industry.

Ease of Use

Glutamine supplements can come in many forms. The one you decide to take depends on how well they absorb in your body, and your personal preference. For example, some glutamine supplements are sold in a pill or capsule. Other supplements absorb faster in liquid form.

Certain supplements are sold in pills because liquids may be ineffective for some people. Others need to take a liquid when it becomes difficult for the body to absorb a pill, or when it is difficult for them to swallow tablets or capsules.

And not all forms of glutamine are the same. For example, there are different strengths to choose from. When in doubt, consult a physician about which particular supplement suits your needs.

Safety Hazards

Take notice that supplements are not endorsed by the FDA in the same manner that drugs are. They do not review supplements for efficacy or safety before they are sold to the public. Always research when choosing new supplements. Other ways to be safe:

If your diet consist of vegetables, fruits, and whole grains, speak with a physician to see if glutamine will enhance the results you are looking for.

Glutamine can be unsafe if taken in high doses. It can also affect people diagnosed with certain diseases.

Breastfeeding or pregnant women should avoid glutamine as it can be harmful to the baby. A prenatal vitamin is sufficient until delivery.

Heart medications such as aspirin, blood thinners, diuretics and steroids may not mix well with a glutamine supplement; and may cause a medical condition to get worse.

People going for surgery should avoid glutamine, as it may cause a negative reaction.

People with certain types of cancer or who are being treated for it should avoid glutamine.

Drug Interactions

Select studies that used preparations of glutamine were linked with a few side effects. This can include but not limited to gastrointestinal symptoms, swelling of the extremities, infections, headaches, and fever.

As far as drug interactions, a few reports suggested that glutamine may reduce the ammonia-lowering effect of lactulose. For people with hepatic encephalopathy or liver cirrhosis, glutamine may not be the best choice of supplement to take.

Product Purity

Check for evidence from scientific studies. Search for credible publications on how well the product works. You can contact the manufacturer to ask for studies to back up their claims. Find out how they ensure their ingredient label. Make sure the same ingredients are actually in the bottle.

If a product claims to cure a disease, or is listed as “all-natural”, or has a refund guarantee, take precaution. If it sounds too good to be true, then most likely it is.

It is ideal to choose brands that are labeled with the US Pharmacopeia, Underwriters Laboratory, NSF International, or Consumer Lab seal. These companies provide a verification process that ensures that labels contain the ingredients that the label claims. They also check for purity in the ingredients.

Many supplements manufactured outside the U.S. are not regulated and may contain toxic ingredients.

Protection

Supplements do not last forever, and may need a little care to ensure their potency. Keep glutamine supplements in a cool and dry place. Avoid damp spots such as bathrooms. Keep supplements on in a locked cabinet or on a high shelf, away from the reach of children.

Some supplements lose their potency when they sit out on the shelf for too long. Do a routine check and throw out any supplements that are past their expiration date.

Expert Interviews & Opinions

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L-Glutamine helps with leaky gut conditions

Glutamine is one of the amino acids found in the cells and in the blood. It is a source of energy that affect immunity and the intestines. Supplementation can help to protect the lining of the bowel. It is known for enhancing immune cell function. A study showed that athletes with leaky gut uses glutamine to help them to compete in the heat.

Glutamine helps to coat certain cell cancer cells

One study showed that glutamine provides a coating to the mouth and esophagus in patients diagnosed with neck cancer. It helps with painful swallowing by reducing the chances of getting inflammation in the mouth.

Glutamine aid in fatty liver disease

NASH is one of the leading causes of liver disease, which will eventually require liver transplantation. Data from one study shows that glutamine supplements may provide protection against the progression of liver disease. It may also prevent the development of NASH altogether.

Glutamine may play in the rate of reduced infections

One of glutamine’s primary functions is to offer fuel to the body’s immune cells so they are safeguarded against infections. An interesting review showed that glutamine may shorten the length of hospital stay, the rate of infection in hospitals, and a decreased mortality rate for in-patients. This is not a statistic, however. It is an interesting observation.

Glutamine effect on the brain

People take glutamine to increase brain function. It is energy to the brain’s neurotransmitters. Practitioners recommend glutamine supplements and foods rich in glutamine to reduce cravings for alcohol and sugar - which are detrimental stimulants of the brain.

Glutamine is not a meal replacement

Glutamine might help you to get the adequate amount of amino acids from what is not present in certain foods. Take into account that supplement cannot replace the variety of foods that are needed in a healthy diet. Evidence does show that some supplements can benefit overall health while other studies will require more research.

You have to do the work

No glutamine supplement will help with weight loss and muscle building by itself. Be certain that you are ready to be committed to working out and are willing to make lifestyle changes before spending money on a supplement.

Other Factors to Consider

Bottom Line

Choose a glutamine that does not contain added synthetic ingredients, colors, and fillers that are unrecognizable. Certain manufacturers often add these ingredients to extend shelf life, to make it aesthetically appealing, or to make it cheaper to manufacture.

There are independent organizations that provide quality testing. For the products that pass inspection, their seal of approval is placed on the label. The supplement labels state that the products contain the accurate ingredients listed on it, that the supplement contains safe levels of contaminants, and that the product was properly manufactured.

An NSF stamped label means that the product has been through a rigorous inspection process. It also means that:

The facility has been audited to comply with GMPs practices.
The supplements have been verified through reviews.
It has been checked for authenticity.
Testing was conducted to check for metals, pesticides, and harmful contaminants.
Audits are held to ensure that manufacturers are following certification codes.

Accuracy

Picking a credible brand of supplement is something to take into consideration. There are new companies that are emerging everywhere, and not all of them are credible. It is the consumer’s responsibility to be diligent in their research. It would be a health risk otherwise.

Manufacturers should ideally formulate their supplements according to scientific findings. Look for raw ingredients when choosing a supplement. Go with a manufacturer who has worked with independent laboratories to ensure that their supplements meet label claims and are void of harmful contaminants.

A reputable company provide product specifications and studies that support their formulas. You should be able to access this information on their websites.

Potency

Nutrient Form

Read the labels carefully to see what form the supplement is made from. These are normally enclosed in parentheses after the nutrient’s name. There are some nutrients listed that does not state what form they come in. For instance, vitamin C can be natural or synthetic. Minerals can also come in different forms. Elemental minerals are not easily absorbed by the body; so a manufacturer will usually combine them with substances like amino acids so that they can be absorbed easily. These types of minerals are called chelated minerals.

Dosage

In choosing a supplement, make sure that it has enough amount of nutrients for improving your health. Some brands may contain a wide range of ingredients, but if you fail to look at their labels, the dosage amount may be so small that it will not have an effect. So do not be fooled by marketing tactics. It is important to know the recommended dosage before shopping for a supplement. In that way, you can identify which supplement is the right one for your needs.

Value

Value has a huge bearing on a supplement’s quality. Avoid purchasing cheap brands without viewing their labels. Gather up information regarding the manufacturer of the supplement. Some cheaper product brands can save money by using inadequate dosages, improper nutrient forms, and other cost-saving factors.

You can easily get this type of information from companies that evaluate consumer products. They provide test results that are conducted independently. The results will help consumers identify the best supplement products and provide general recommendations.

Responsiveness

Benefits of Glutamine For Muscle Building

Below lists direct roles in which glutamine boosts performance and assist the body in repairing or building muscle:

Helps to stimulate muscle protein by supplying nitrogen to help build proteins
Glutamine helps to decrease muscle recovery time.
Increases the growth hormone release and production.
It helps to decrease muscle catabolism during workouts.
Helps with the body’s endurance by supplying glycogen when it is depleted.
Decrease the risk of infection or illness by boosting the body’s immune system.
Assists with over-training during intense activities.

Glutamine intake must be greater than the amount produced by the body.

Other Benefits of Glutamine Supplements:

Aids with a stronger immune system and less prone to infection and disease.
Reverse intestinal damage that may be caused by inflammation
Helps to enhance mood and behavior.
May help with people with neurodegenerative diseases.
May aid with short and long term memory.
Speed wound healing in postoperative patients

A 2001 study reported that patients that were given glutamine supplements showed improvement in nitrogen balance. Other trials reported decreased hospital stay for patients receiving glutamine supplements.

Helps relieve side effects from the treatment of cancer
Glutamine that was given to cancer patients who are receiving treatment via radiation reported positive results. This also applied to chemotherapy-related treatments.

Supplements were given to treat neuropathy symptoms, sore throat, inflammation of the mouth and diarrhea.

Use

Professionals offer guidelines for when to take glutamine. That is, 30 minutes before or after exercising, when you wake up and before bed.

Post-workout
One study has shown that muscle growth requires taking essential amino acids during the recovery period after a workout. This is the time when the rate of protein synthesis increases and amino acid is promoted into the muscles. Six grams of amino acids and 35 grams of sucrose was taken 1 or 3 hours after a workout. Compared to the sucrose drink, protein synthesis increased dramatically, with similar anabolic responses.

Before Bed
Researches have indicated that glutamine taken right before bed improved growth hormone levels during sleep.

When You Wake Up
An glutamine supplement taken early in the morning replenishes muscles with abundant amino acid that they need at the beginning of the day.

Frequently Asked Questions

q: Can glutamine make you gain weight?
a:

For people that may be overweight, the body may require more glutamine than usual. If you do not have enough, the body will break down the muscle tissue for getting the amino acid it needs. You will begin to lose muscle mass.

q: Is glutamine safe to take daily?
a:

If you are starting to take glutamine supplements, you can begin with a dose of 5 grams per day. Short-term use of glutamine is safe when combined with glutamine found in foods. However, it can have an impact in how the body processes amino acids.

q: How long does glutamine supplements take to work in the body?
a:

For people without intestinal problems, it can take as little as 2 to 12 weeks for it to work. If you have an autoimmune inflammation, it can take around 12 to 24 to see any noticeable changes.

q: Can you take glutamine on off days?
a:

You can take it on off days. It is recommended to take it in 2 to 3 doses. You can take it before bedtime.

q: What foods are naturally high in glutamine?
a:

Animal proteins are high in glutamine. There are vegetables that contain glutamine. The following are the lists of foods:

Fish
Milk
Nuts
Eggs
Cabbage
Protein Drinks
Beans

q: Can glutamine be taken with protein?
a:

Protein supplementation and glutamine are safe to take together, knowing that glutamine itself is a building block of protein. Both supplements are used by athletes to improve their recovery time and performance.

q: Can you mix glutamine with BCAA?
a:

The body feel the most stress during a workout. A pre-workout or an intra-workout supplement can work best. For example: take 5 grams of glutamine with 3 grams of BCAA.