Glutamine Powder
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 MET RX L GLUTAMINE POWDER 1000 GMS SPEED RECOVERY  US $26.99
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 Source Naturals L Glutamine Powder 16 oz SHIP FREE US $28.59
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 Source Naturals L Glutamine Powder 16oz Free Shipping US $34.99
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 Source Naturals L Glutamine Free Form Powder 353 oz US $13.30
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 L Glutamine KILO Powder 1000 Gm 1000 gm US $43.87
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 ARG Nutricology L Glutamine Powder Gluconeogenesis 200g US $34.51
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 L Glutamine Powder 1 Lbs by Source Naturals US $20.90
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 ARG Nutricology L Glutamine Powder GI enterocytes 200g US $34.51
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 L Glutamine Powder 150 gm by Foodscience Of Vermont US $18.66
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 Glutamine Fuel Powder 4 Oz by Twinlab US $17.59
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 Glutamine Fuel Powder 18 Oz by Twinlab US $31.62
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 L Glutamine Powder 200 g pwdr Nutricology US $36.75
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 Jarrow Formulas L Glutamine USP Grade 8 oz Powder US $19.87
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 L Glutamine Amino Acid Powder natural 1lb US $22.99
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 L Glutamine Powder 200 g Allergy Research Group US $36.90
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 Life Extension L Glutamine Powder 100 g Ship FREE US $19.74
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 Now Foods L Glutamine Powder 1kg 353 oz US $50.33
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 Jarrow Formulas L Glutamine 8 oz POWDER SHIP FREE US $19.99
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Source Naturals L-Glutamine, Free Form Powder, 16 oz (453.6 g) List Price: $40.98 Sale Price: $19.78 Average Rating:   |
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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)... |
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Optimum Nutrition Glutamine Powder, Unflavored, 35.2 Ounces List Price: $55.99 Sale Price: $37.45 Average Rating:  |
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Dietary Supplement. Pure Free Form L-Glutamine Amino Acid Powder. Glutamine is the most abundant amino acid in your body, comprising more than 60% of the free amino acid pool in skeletal muscle and greater than 20% of total circulating amino acids... |
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NOW Foods Glutamine Pure Powder, 6-Ounces List Price: $17.99 Sale Price: $6.95 |
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Glutamine has recently been the focus of much scientific interest. A growing body of evidence suggests that during certain stressful times, the body may require more glutamine than it can produce. Under these circumstances glutamine may be considered a "conditionally essential" amino acid... |
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NOW Foods L-Glutamine Pure Powder, 1-Pound List Price: $39.99 Sale Price: $17.95 |
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Glutamine has recently been the focus of much scientific interest. A growing body of evidence suggests that during certain stressful times, the body may require more glutamine than it can produce. Under these circumstances glutamine may be considered a “conditionally essential” amino acid... |
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Dymatize Nutrition Glutamine Micronized Powder, 10.7-Ounce Tub List Price: $26.25 Sale Price: $14.69 Average Rating: |
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L-Glutamine, the free amino acid, is the single most abundant amino acid present in skeletal muscle. L-Glutamine may support muscle tissue by limiting the degradation of protein through nitrogen retention, glycogen synthesis, and protein synthesis... |
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Glutamine Powder Unflavored 1000 gr List Price: $62.99 Sale Price: $35.95 Average Rating: |
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Glutamine is the most abundant amino acid found in the body, comprising more than 60% of the free amino acid pool in skeletal muscle and greater than 20% of total circulating amino acids. Each teaspoon of Optimum Nutrition's Glutamine Powder provides 5000 mg (5g) of pure L-Glutamine... |
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Glutamine Powder 1000 gr List Price: $69.99 Sale Price: $28.00 Average Rating:  |
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Pure Glutamine, a flavorless, easy-mixing, pure, free amino acid formula. Glutamine is the single most abundant amino acid found in the skeletal muscle and is heavily metabolized under intense training conditions... |
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Vitamin Shoppe - L-Glutamine Powder, 4500 mg, 4 oz powder List Price: $5.99 Sale Price: $5.99 Average Rating: |
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L-Glutamine is the most abundant amino acid in the body involved in many key activities including: Helping to sustain proper mental function; regulating protein synthesis; helping to detoxify nitrogen; and serving as a source of fuel for cells lining the intestine. |
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Thorne Research - L-Glutamine Powder - 12 oz.wt. List Price: $45.45 Sale Price: $34.09 |
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Thorne Research, L-Glutamine Powder 12 oz - L-glutamine is the most prevalent amino acid in the bloodstream. It is found in high concentration in skeletal muscle, lung, liver, brain, and gastrointestinal tissues... |
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Glutamine Powder-Optimum Nutrition Glutamine, 600g Unflavored List Price: $42.99 Sale Price: $27.95 Average Rating: |
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Dietary Supplement. Pure Free Form L-Glutamine Amino Acid Powder. Glutamine is the most abundant amino acid in your body, comprising more than 60% of the free amino acid pool in skeletal muscle and greater than 20% of total circulating amino acids... |
Glutamine Facts
What is Glutamine?
Glutamine is one of twenty Amino Acids that are encoded by the standard genetic code. The genetic code is a set of rules by which information encoded in genetic material is translated into proteins. Proteins participate in every process within cells including many biochemical reactions that are vital for metabolism and therefore vital for the growth and sparing of muscle tissue.
Glutamine is usually classed as non-essential (meaning it can be produced even if it isn’t specifically ingested through diet) and is the most abundant non-essential Amino Acid found in the human body. Although glutamine is considered non-essential it becomes conditionally essential (meaning we need to ingest more through our diet) in times of stress illness or injury as, at these times the need for glutamine is increased. Glutamine is also the only amino acid that can cross the blood brain barrier (a barrier that restricts the passage of various chemical substances e.g. bacteria from the bloodstream into neural tissue to protect the brain from many common bacterial infections).
As the need for glutamine is increased during periods of catabolism (muscle wasting) glutamine has been of particular importance to bodybuilders or athletes that break down muscle tissue on a regular basis through weight training.
Sources Of Glutamine
Glutamine is naturally contained in foods such as poultry, beef, dairy, eggs, wheat, spinach and parsley amongst others. If you don’t work out or undergo any physical exercise on a regular basis you should be able attain a suitable amount from your natural diet. However people who undergo regular physical activity will have much higher glutamine requirements and that’s where L-Glutamine supplements can help.
How Does Glutamine Work?
The benefits of glutamine are multiple, for example the main function of glutamine is as a substrate for DNA synthesis. This process duplicates a double stranded DNA molecule and is a fundamental process, used by all living organisms to manufacture new cells and is even the basis for biological inheritance.
More importantly for bodybuilders, glutamine plays a major role in protein synthesis; this process helps use proteins to build and repair muscle tissue and also helps block cortisol based protein catabolism. In short glutamine helps your body build and repair muscle tissue and prevents the initial breakdown of muscle tissue through specific stress. Glutamine also acts as a precursor to rapidly dividing immune cells that aid in a healthy immune response.
Best Time To Take Glutamine
As glutamine plays a major role in protein synthesis the best times to take glutamine are:
Pre And Post Workout
During physical activity your glutamine stores are heavily depleted; supplementing with glutamine around your workout can prevent this and therefore slow the rate of muscle catabolism and increase anabolism.
Before Bed
During sleep we go without nutrition for 6-8 hours which is highly catabolic; supplementing with glutamine here can increase your stores and prevent catabolism
How To Take L-Glutamine Supplements
Most people who train on a regular basis can take about 20g of glutamine daily. This is best taken in 5g-10g doses throughout the day. A good protocol would be 5g at breakfast, 5g pre-workout, 5g post-workout and 5g before bed. Pure L-Glutamine supplements are tasteless and not mixed with any fillers so a teaspoon full will give you a 5g dose. Your post workout dose of glutamine can be mixed with a post workout shake consisting of carbohydrates and protein to kick-start the muscle building process. Many people find it easier to take their supplemental glutamine mixed with a protein shake, for ease of use and the benefits of taking all the other amino acids in protein with glutamine.
Creatine And Glutamine
Many people ask the question, can I take creatine and glutamine together? The answer is yes, both creatine and glutamine are pure extracts of natural substances and in fact are both found in many of the same foods. Therefore supplementing with creatine and glutamine will work very well for sparing muscle tissue and increasing strength, you can even take creatine and glutamine at the same time if you wish, the rate of absorption will not be affected.
Glutamine Side Effects
As of yet scientific studies have shown that there are no dangerous adverse effects of supplementing with glutamine within normal boundaries. Most people training regularly will benefit from taking 15-20g of supplemental glutamine daily and no more.
General Health Facts When Supplementing With Glutamine
- Glutamine supplements come in capsules on plain powder
- Glutamine has been shown to be relatively unstable in solution; don’t let your mixed glutamine sit for a few hours (capsulated glutamine obviously doesn’t have this problem)
- Glutamine supplementation should be split throughout the day for best results, the two main times of benefit being post workout and before bed
- Keeping well hydrated at all times will keep your body at an optimal level to build muscle tissue
Conclusion
As Glutamine is the most abundant amino acid in muscle tissue and plays such an important role in protein synthesis and anti-catabolic processes you may want to consider it in your supplement regime.
About the Author
hartnutrition.co.uk is the UK's leading bodybuilding site with articles and supplements
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