Evidence supporting the use of: Glutamine precursor (unspecified)
For the health condition: Athletic and Exercise Aids

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Glutamine is a non-essential amino acid that is abundant in skeletal muscle and plasma. It serves as a precursor for protein synthesis and is involved in cellular energy metabolism. Its use as an athletic and exercise aid is primarily based on the hypothesis that intense exercise can deplete muscle glutamine stores, potentially impairing recovery, immune function, or muscle protein synthesis. While glutamine supplementation is popular among athletes, scientific evidence supporting its efficacy for improving exercise performance or enhancing recovery is limited and mixed.

Several studies have investigated oral glutamine supplementation in athletes. Most research indicates that glutamine does not significantly enhance muscle strength, power, or aerobic performance in healthy individuals. Some studies suggest it may help reduce exercise-induced immune suppression, but the effects are generally modest and not consistently replicated. Meta-analyses and systematic reviews largely conclude that glutamine has little to no ergogenic effect for most athletes, though it may be beneficial in specific situations involving extreme stress or overtraining.

In summary, while the rationale for glutamine use in athletes is grounded in biochemistry and some early studies, the overall body of evidence does not robustly support its widespread use as an exercise aid. Its use is justified by a combination of scientific rationale and tradition, but the strength of evidence is low (rated 2/5).

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Other ingredients used for Athletic and Exercise Aids

7-Keto-DHEA
Acetyl L-carnitine
adenosine 5-triphosphate disodium (ATP)
Alpha D-ribofuranose
alpha-ketoglutarate (AKG)
amino acids
ashwagandha
astaxanthin
bacillus subtilis
beet
beta-alanine
black tea
bovine
branched-chain amino acids
caffeine
capsaicinoids
coenzyme Q10 (CoQ10)
collagen
colostrum
conjugated linoleic acid (CLA)
cordyceps
creatine monohydrate
curcumin
eleuthero
ginseng
green tea
guarana
guayusa
l-isoleucine
L-alanine
L-alanyl-L-glutamine
L-arginine
l-carnitine
L-citrulline
L-glutamine
L-glycine
L-leucine
L-ornithine
L-taurine
l-tyrosine
L-valine
maca
magnesium
maltodextrin
Muira puama
Acetyl-L-Tyrosine
omega-3 fatty acids
ornithine alpha-ketoglutarate
Peppermint
protein
pyridoxal-5-phosphate (P-5-P)
Rhodiola
black ginger
spirulina
Tongkat ali
tribulus
vitamin C
Watermelon
Whey protein
suma
jiaogulan
capsicum
bee pollen
cistanche
electrolytes blend (proprietary)
Yerba mate
Algae
cocoa
brown rice protein
sea salt
1,3,7-Trimethylpurine-2,6-dione
arginine alpha ketoglutarate
antler
arginine creatine
Arginine nitrate
arachidonic acid
Arginine malate
Arginine aspartate
Alpha glyceryl
Alpha-ketoisocaproic acid
Agmatine
Adenosine triphosphate (ATP)
Algal protein
Alpha hydroxyisocaproic acid
Arginine silicate
bicarbonate
Beef Protein
bovine protein
Bulbine natalensis
ba ji tian
BCAA
Camellia sinensis
coconut
casein
cardarine
capsinoids
citrate malate
capsiate
creatine
D-Aspartic Acid
dihydrocapsiate
deer velvet
D-Ribose
Ephedra
eurycomanone
elk antler
Eurycoma Longifolia
ecdysteroids
Ethyl-Alpha-Guanido-Methyl-Ethanoate
ecdysterone
ephedrine
Fadogia agrestis
guanidinoacetic acid
Ginsenosides
Glutamine
Growth factors
GMS-ribose
glucose
Glycocyamine
Guaranine
Glycerol
Higenamine
hydroxymethylbutyrate
HMB hydroxymethylbutyrate
horny goat weed
isomaltulose
Isoleucine
kola nut
ketone salts
lactalbumin
Laxogenin
macamides
maral root
Mineral ascorbate
Milk Protein
Methylxanthine
Methylliberine
Mate
Mushroom
macaenes
Nitrous Malate (TM) Diarginine Malate
Ornithine
Phosphocreatine
pyrroloquinoline quinone
paraxanthine
Phytoecdysteroid
pyruvate
Phosphatidic Acid
Piper nigrum
Palatinose
Peptides
Quinoa Protein
Rhaponticum
ribose
robusta coffee
Synephrine
Safed musli
salt
Sida cordifolia
Theobromine
Tripeptide
Trichilia catigua
Turkesterone
Trichopus zeylanicus
Theacrine
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Tribulus Terrestris
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Yohimbine

Products containing Glutamine precursor (unspecified)

We currently have no products on Vitabase that contain this ingredient.