
Glutamine
Scientific names: L-(+)-2-Aminoglutaramic acid
Alternate names: Acide Glutamique, Acide Glutamique HCl, Acide L-(+)-2-Aminoglutaramique, Acide L-Glutamique, Acide L-Glutamique HCl, Alanyl-L-Glutamine Dipeptide, Éthyle Ester de Glutamine, Éthyle Ester de Glutamine HCl, GLN, Glutamate, Glutamic Acid, Glutamic Acid HCl, Glutamic Acid Hydrochloride, Glutamina, Glutaminate, Glutamine Ethyl Ester, Glutamine Ethyl Ester HCl, Glutamine Methyl Ester, Glutamine Peptides, Levoglutamide, Levoglutamine, L-Alanyl-L-Glutamine, L-Glutamic Acid, L-Glutamic Acid HCl, L-Glutamic Acid Hydrochloride, L-Glutamic Acid 5-Amide, L-Glutamine, N-Acetyl-L-Glutamine, Peptides de Glutamine, Q
Actions: Anti-cytotoxic, Cardioprotective, Exercise performance, Gastrointestinal, Growth, Hepatoprotective, Immune, Muscle developing, Muscle sparing, Weight, Wound-healing
Background
Glutamine is the most abundant amino acid found in the body. It's made in the muscles and transferred by the blood into different organ systems.
Glutamine is a building block for making proteins in the body. It's also needed to make other amino acids and glucose. Glutamine supplements might help gut function, immune function, and other processes, especially in times of stress when the body uses more glutamine.
People take glutamine for sickle cell disease, burns, to improve recovery after surgery, for injuries, and for complications of HIV/AIDS. It is also used for diarrhea, cystic fibrosis, obesity, lung cancer, and many other conditions, but there is no good scientific evidence to support most of these other uses.
Glutamine (Endari) is approved by the US FDA as a prescription drug for sickle cell disease.
Glutamine is a building block for making proteins in the body. It's also needed to make other amino acids and glucose. Glutamine supplements might help gut function, immune function, and other processes, especially in times of stress when the body uses more glutamine.
People take glutamine for sickle cell disease, burns, to improve recovery after surgery, for injuries, and for complications of HIV/AIDS. It is also used for diarrhea, cystic fibrosis, obesity, lung cancer, and many other conditions, but there is no good scientific evidence to support most of these other uses.
Glutamine (Endari) is approved by the US FDA as a prescription drug for sickle cell disease.
Safety Safety definitions
When taken by mouth: Glutamine is likely safe when used in doses up to 40 grams daily. Side effects are generally mild and might include bloating, nausea, dizziness, heartburn, and stomach pain.
Children: Glutamine is likely safe when taken by mouth in doses up to 0.7 grams/kg body weight daily. There isn't enough reliable information to know if higher doses of glutamine are safe.
Liver disease: Glutamine can increase the risk for brain function issues in people with advanced liver disease. Do not use it if you have liver disease.
Bipolar disorder: Glutamine might increase the risk for mania or hypomania in people with this condition.
Monosodium glutamate (MSG) sensitivity: If you are sensitive to MSG, you might also be sensitive to glutamine. The body converts glutamine to glutamate.
Seizures: There is some concern that glutamine might increase the likelihood of seizures in some people. Avoid use.
Special Precautions & Warnings:
Pregnancy and breast-feeding: Glutamine is consumed as part of the diet. There isn't enough reliable information to know if glutamine is safe to use in larger amounts as a medicine when pregnant or breast-feeding. Stay on the safe side and avoid use.Children: Glutamine is likely safe when taken by mouth in doses up to 0.7 grams/kg body weight daily. There isn't enough reliable information to know if higher doses of glutamine are safe.
Liver disease: Glutamine can increase the risk for brain function issues in people with advanced liver disease. Do not use it if you have liver disease.
Bipolar disorder: Glutamine might increase the risk for mania or hypomania in people with this condition.
Monosodium glutamate (MSG) sensitivity: If you are sensitive to MSG, you might also be sensitive to glutamine. The body converts glutamine to glutamate.
Seizures: There is some concern that glutamine might increase the likelihood of seizures in some people. Avoid use.
Effectiveness
Natural Medicines rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, Ineffective, and Insufficient Evidence to Rate.
Effective Effectiveness definitions
- Sickle cell disease. A specific glutamine product (Endari, Emmaus Medical, Inc) is a US FDA-approved prescription drug for sickle cell disease. Taking it by mouth reduces sudden complications of sickle cell disease.
Possibly effective Effectiveness definitions
- Burns. Administering glutamine through a feeding tube seems to improve healing in people with severe burns.
- Critical illness (trauma). Taking glutamine by mouth or by IV seems to reduce complications in critically ill adults. But it doesn't seem to reduce the risk of death. IV products can only be given by a healthcare provider.
- Involuntary weight loss in people with HIV/AIDS. Taking glutamine by mouth seems to help HIV/AIDS patients absorb food better and gain weight.
- Recovery after surgery. Giving glutamine by IV seems to reduce the number of days spent in the hospital after surgery. But it doesn't seem to reduce the risk of death after any type of surgery. IV products can only be given by a healthcare provider.
Possibly ineffective Effectiveness definitions
- Athletic performance. Taking glutamine by mouth doesn't seem to improve athletic performance.
- A type of inflammatory bowel disease (Crohn disease). Taking glutamine by mouth doesn't seem to improve symptoms of Crohn disease.
- An inherited condition that can lead to kidney or bladder stones (cystinuria). Taking glutamine by mouth doesn't seem to improve symptoms of this condition.
- Infants weighing less than 2500 grams (5 pounds, 8 ounces). Giving glutamine to infants by mouth doesn't seem to improve side effects from low birth weight.
- A group of inherited disorders that cause muscle weakness and muscle loss (muscular dystrophy). Taking glutamine by mouth doesn't improve muscle strength in children with muscular dystrophy.
- Growth and development in premature infants. Giving glutamine by mouth doesn't seem to prevent illness or death in premature infants.
- Diarrhea caused by radiation therapy. Taking glutamine by mouth doesn't prevent diarrhea or reduce the severity of diarrhea caused by radiation therapy.
Dosing & administration
Glutamine has most often been used by adults in doses of 15-30 grams by mouth daily for up to 12 months. Speak with a healthcare provider to find out what dose might be best for a specific condition.
For information on using prescription glutamine, a product called Endari, speak with a healthcare provider.
For information on using prescription glutamine, a product called Endari, speak with a healthcare provider.
Interactions with pharmaceuticals
Medications used to prevent seizures (Anticonvulsants)
Interaction Rating=Moderate Be cautious with this combination.
Glutamine may increase the risk of seizures in some people. Therefore, taking glutamine may decrease the effects of medications used to prevent seizures.
Interactions with herbs & supplements
There are no known interactions with herbs and supplements.
Interactions with foods
There are no known interactions with foods.
Products
View all productsPer 35 g:
- L-glutamine
- Oryza sativa protein (sprout) bio-fermented (Brown rice)
- Golden pea protein (sprout) bio-fermented
- Coconut protein
- Pumpkin seed protein
- Natural flavours
- Acacia sp. (fibre)
- Apple pectin
- Inulin (Dietary fibre)
- Cocoa powder 1.05 g
- Sunflower seed extract
- MCT powder
- Cyamopsis tetragonoloba (Guar gum)
- Arctic sea algae
- Sea Salt
- L-leucine
- L-isoleucine
- L-valine
- Protease
- Amylase enzyme
- Lipase
- Cellulase
- Lactase
- Bacillus coagulans (GBI-30) (GanedenBC30®) 1 billion CFU
- Stevia rebaubiana (Steviol glycosides)
- Cinnamomum spp.
Per 35 g:
- L-glutamine
- Oryza sativa protein (sprout) bio-fermented (Brown rice)
- Golden pea protein (sprout) bio-fermented
- Coconut protein
- Pumpkin seed protein
- Natural flavours
- Acacia sp. (gum)
- Apple pectin
- Inulin (Dietary fibre)
- MCT powder
- Sunflower seed extract
- Cyamopsis tetragonoloba (Guar gum)
- Arctic sea algae
- Sea Salt
- L-leucine
- L-isoleucine
- L-valine
- Protease
- Amylase enzyme
- Lipase
- Cellulase
- Lactase
- Lucuma
- Vanilla planifolia (bean) 70 mg
- Bacillus coagulans (GBI-30) (GanedenBC30®) 1 billion CFU
- Stevia rebaubiana (Steviol glycosides)
- Cinnamomum spp.
Per 35 g:
- L-glutamine
- Oryza sativa protein (sprout) bio-fermented (Brown rice)
- Golden pea protein (sprout) bio-fermented
- Coconut protein
- Pumpkin seed protein
- Acacia sp. (gum)
- Apple pectin
- Inulin (Dietary fibre)
- MCT powder
- Lucuma 700 mg
- Sunflower seed extract
- Cyamopsis tetragonoloba (Guar gum)
- Arctic sea algae
- Sea Salt
- L-leucine
- L-isoleucine
- L-valine
- Protease
- Amylase enzyme
- Lipase
- Cellulase
- Lactase
- Pink Himalayan crystal salt 175 mg
- Bacillus coagulans (GBI-30) (GanedenBC30®) 1 billion CFU
- Stevia rebaubiana (Steviol glycosides)
- Cinnamomum spp.
Per 30 g (Iced Coffee):
- L-glutamine
- Pea protein isolate
- Vaccinium corymbosum powder
- Rubus idaeus powder
- Euterpe oleracea (berry) ext. (Acai)
- Medium chain triglycerides (goMCT®️)
- Natural flavours
- Linum usitatissimum (seed) (Flaxseed)
- Plantago ovata (husk) (Psyllium)
- Sunflower seed
- Quinoa powder
- Amaranth powder
- Buckwheat powder
- L-leucine
- L-isoleucine
- L-valine
- L-Carnitine
- Stevia rebaubiana
- Coffea arabica
Per 36 g (Chocolate Fudge):
- L-glutamine
- Oryza sativa (Brown rice)
- Vicia faba (Fava bean protein)
- Pumpkin seed protein
- Cannabis sativa (seed)
- L-glycine
- L-valine
- L-threonine
- L-leucine
- L-arginine
- L-isoleucine
- Cocoa powder 3.24 g
- Natural flavours
- Malus powder (Apple)
- Acacia sp. (fibre)
- Siraitia grosvenorii (Monk fruit)
- Medium Chain Triglycerides
- Xanthan gum
- Eleutherococcus senticosus
- Coffea canephora
- Camellia sinensis
- Magnesium citrate
- Zinc gluconate
- Ferrous fumarate (Iron)
- Pink Himalayan crystal salt
- Laminaria digitara (Kelp)
- Ananas comosus (Bromelain)
- Carica papaya (Papain)
- Vitamin D
- Cyanocobalamin (Vitamin B12)
Per 12 g (Juicy Peach):
- L-glutamine 1 g
- L-leucine 2 g
- L-valine 1 g
- L-isoleucine 1 g
- Total Amino blend Amino9™ 2 g
- L-histidine
- L-isoleucine
- L-leucine
- L-lysine
- L-methionine
- L-phenylalanine
- L-threonine
- L-valine
- L-tryptophan
- NordicCherry™ tart cherry extract (Nordic cherry) 250 mg
- Curcumin (Turmeric) 50 mg equiv. curcuminoids 47.5 mg
- Sodium chloride (Salt)
- Potassium chloride
- Calcium citrate
- Magnesium sulphate
- Ananas comosus (Bromelain) 25 mg
- Polyphenolic fulvic minerals (Cell Charge™) 10 mg
- Natural flavours
- Citric acid monohydrate
- Stevia rebaubiana
Per 6 g:
- L-glutamine 750 mg
- Hydrolysed marine collagen 3 g
- Ascorbic acid (Vitamin C) 200 mg
- Silica - colloidal anhydrous 320.85 mg equiv. silica 150 mg
- Haematococcus pluvialis ext. 80 mg
- Aloe barbadensis ext. 50 mg
- Curcuma longa ext. 80 mg
- Eleutherococcus senticosus ext. 33.36 mg
- Quercetin dihydrate 100 mg
- d-alpha-Tocopheryl acid succinate 41.34 mg equiv. vitamin E 67.5 IU
- L-glycine 500 mg
- Vaccinium myrtillus juice dry 100 mg
Per 6 g (Lemon Lime):
- L-glutamine 500 mg
- Magnesium glycinate dihydrate 2225 mg equiv. magnesium 250 mg
- Magnesium citrate 465 mg equiv. magnesium 70 mg
- Taurine 500 mg
- Levocarnitine tartrate (L-carnitine) 36.7 mg equiv. levocarnitine 25 mg
- Thiamine hydrochloride (Vitamin B1) 25 mg equiv. thiamine 22.3 mg
- Riboflavin (Vitamin B2) 5 mg
- Nicotinamide (Vitamin B3) 20 mg
- Calcium pantothenate (Vitamin B5) 30 mg equiv. pantothenic acid 27.6 mg
- Pyridoxine hydrochloride (Vitamin B6) 30 mg equiv. pyridoxine 24.6 mg
- Folic acid 150 μg
- Cyanocobalamin (Vitamin B12) 200 μg
- Ascorbic acid (Vitamin C) 130 mg
- Chromium picolinate 402 μg equiv. chromium 50 μg
- Potassium citrate 138 mg equiv. potassium 50 mg
- Selenomethionine 62 μg equiv. selenium 25 μg
- Zinc amino acid chelate 25 mg equiv. zinc 5 mg
- Stevia rebaubiana
Per 5 g (Cucumber Lime):
- L-glutamine 500 mg
- Brassica oleracea var. italica powder 250 mg
- Arthrospira platensis (Spirulina) 100 mg
- Cordyceps sinensis 105 mg
- Lentinula edodes 100 mg
- Trametes versicolor 70 mg
- Astragalus membranaceus 100 mg
- Camellia sinensis 500 mg
- Grifola frondosa 125 mg
- Spinacia oleracea (Spinach) 175 mg
- Brassica oleracea (leaf) powder (Kale) 175 mg
- Chlorella vulgaris powder 175 mg
- Nasturtium officinale 160 mg
- Apium graveolens powder 110 mg
- Pleurotus eryngii 100 mg
- Lipase 750 LipU
- Protease 1000 DU
- Ananas comosus (Bromelain) 350 GDU
- Carica papaya (Papain) 40 mg
- Bacillus coagulans (LactoSpore®) 4 billion CFU
- Lactobacillus rhamnosus 750 million CFU
- Saccharomyces cerevisiae (boulardii) (SB) 500 million CFU
- Quercetin 100 mg
- Taraxacum officinale 100 mg
- Coriandrum sativum 80 mg
- Zingiber officinale 50 mg
- Rosmarinus officinalis 50 mg
- Origanum vulgare powder 50 mg
- Natural flavours
- Stevia rebaubiana ext.
- Eleutherococcus senticosus 100 mg
- Citric acid anhydrous
Per 15 g:
- L-glutamine
- Cocoa powder
- Theobroma cacao (seed) powder
- Pouteria lucuma (fruit) powder
- Melissa officinalis ext.
- Ginkgo biloba ext.
- Eleutherococcus senticosus ext.
- Bacopa monnieri ext.
- Lepidium meyenii (root) powder
- Inulin (Dietary fibre)
- Magnesium citrate
- Coconut milk powder
- Fragaria ananassa (Strawberry)
- Natural chocolate flavour
- Ceratonia siliqua (pod) powder (Carob)
- Pink Himalayan crystal salt
- Natural vanilla flavour
- Stevia rebaubiana (Steviol glycosides)
- Cyamopsis tetragonoloba (Guar gum)
- Xylitol
Per serve (Pine Splice):
- L-glutamine
- Medicago sativa
- Brassica oleracea var. acephala (sprout) powder (Broccoli)
- Buckwheat lettuce
- Chlorella vulgaris powder
- Arthrospira platensis (Spirulina)
- Brassica oleracea (leaf) powder (Kale)
- Spinacia oleracea
- Petroselinum crispum
- Malus (Apple)
- Ananas comosus (Pineapple)
- Pyrus communis (Pear)
- Citrus limon (Lemon)
- Citrus aurantiifolia (Lime)
- Urtica dioica
- Mentha x piperita
- Camellia sinensis
- Apium graveolens
- Cucumis sativus
- Magnesium citrate
- Potassium citrate
- Calcium citrate
- Natural flavours
- Taraxacum officinale (leaf) ext. dry
- Eleutherococcus senticosus ext. dry
- Curcuma longa ext. dry
- Withania somnifera ext. dry
- Camellia sinensis ext. dry
- Rosmarinus officinalis ext. dry
- Aloe barbadensis ext. dry
- Gardenia jasminoides ext. dry
- Piper nigrum ext. dry
- Magnesium gluconate
- Acacia sp. (fibre)
- L-alanine
- Xanthan gum
- L-histidine
- Lactobacillus acidophilus
- Bifidobacterium lactis
- Bifidobacterium bifidum
- Bifidobacterium longum
- Potassium ascorbate (Vitamin C)
- Citric acid anhydrous
- Zinc gluconate
- Ferrous fumarate (Iron)
- Manganese citrate
- Selenomethionine (Selenium)
- Vitamin D
- Chromium picolinate
- Citrus x latifolia (Tahitian lime)
- Malus (fibre) powder (Apple)
Per 10 g (Berry):
- L-glutamine
- Schisandra chinensis
- Berberis vulgaris
- Cynara scolymus
- Silybum marianum
- Passionfruit
- Citrus limon (Lemon)
- Piper nigrum
- Zingiber officinale
- Camellia sinensis
- Beta vulgaris
- Ribes nigrum
- L-glycine
- L-methionine
- Zinc gluconate
- Taurine
- Choline bitartrate
- Pyridoxine hydrochloride (Vitamin B6)
- Folic acid
- Selenomethionine (Selenium)
- Cyanocobalamin (Vitamin B12)
- Apple pectin
- Riboflavin (Vitamin B2)
- Natural flavours
- Rosmarinus officinalis
- Echinacea angustifolia
- Malpighia glabra
- Curcuma longa
- L-cysteine
- Oryza sativa (Rice hulls)
- Silicon dioxide
- Punica granatum
- Vaccinium corymbosum (fruit) powder
Per 10 g (Raspberry Lemonade):
Per bar:
- L-glutamine
- Arachis hypogaea (Peanut protein isolate) 10.2 g
- Arachis hypogaea (Peanuts) 15 g
- Pea protein concentrate
- Phoenix dactylifera (Date)
- Cocoa mass
- Coconut sugar
- Cocoa solids
- Natural vanilla flavour
- Oryza sativa (Brown rice malt syrup)
- Grape (dried) (Sultana)
- Natural peanut flavour
- Coconut oil
- Stevia rebaubiana
- Pink Himalayan crystal salt
- Prebiotic fibre
Per bar:
- L-glutamine
- Pea protein concentrate
- Prunus dulcis (Almond)
- Phoenix dactylifera (Date)
- Cocoa mass
- Coconut sugar
- Natural vanilla flavour
- Vaccinium macrocarpon
- Sugar
- Sunflower oil
- Cocoa powder 3 g
- Coconut flesh (dried)
- Prunus serotina (fruit) ext. (Black cherry)
- Oryza sativa (Brown rice malt syrup)
- Grape (dried) (Sultana)
- Coconut oil
- Cocoa solids
- Prebiotic fibre
- Vicia faba (Fava bean protein)
- Natural cherry flavour
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This monograph was last reviewed on 19/03/2022 00:54:48 and last updated on 01/12/2020 03:11:25. Monographs are reviewed and/or updated multiple times per month and at least once per year.
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