Evidence supporting the use of: Glutamine precursor (unspecified)
For the health condition: Endurance (lack of)
Synopsis
Source of validity: Scientific
Rating (out of 5): 2
Glutamine is a non-essential amino acid that plays a key role in nitrogen transport, immune function, and intestinal health. Its use as a supplement to support endurance and reduce fatigue in athletes has been studied, though the evidence is mixed. Some small studies have suggested that glutamine supplementation may help reduce exercise-induced immune suppression or muscle soreness, and potentially support recovery after prolonged exercise. However, most well-controlled human trials have failed to show a significant effect of glutamine supplementation on endurance performance, VO2 max, or time to exhaustion in healthy athletes. Reviews and meta-analyses generally conclude that glutamine does not directly enhance endurance performance, though it may have minor benefits in specific situations, such as in individuals with clinical deficiencies or extremely prolonged exercise scenarios. Glutamine precursors, such as glutamate or alpha-ketoglutarate, are less well-studied, and evidence for their efficacy in boosting endurance is limited and inconclusive. Overall, while there is scientific interest and some mechanistic rationale, the clinical evidence supporting glutamine (or its precursors) for improving endurance is weak, resulting in a low evidence rating.
More about Glutamine precursor (unspecified)
More about Endurance (lack of)
Other ingredients used for Endurance (lack of)
acetyl l-carnitineashwagandha
beta-alanine
coenzyme Q10 (CoQ10)
cordyceps
creatine monohydrate
eleuthero
ginseng
l-alanyl-l-glutamine
l-citrulline
l-glutamine
magnesium
milk
phenolic acids
rhodiola
sphaeranthus indicus
spirulina
vitamin B12
jiaogulan
siler root
electrolytes blend (proprietary)
3-(4-hydroxy-3-methoxyphenyl)prop-2-enoic acid
Alpha polylactate
Antler
Arginine malate
Alpha glyceryl
Bacteria
Elthyl-Alpha-Guanido-Methyl-Ethanoate
Ecdysterone
esters
Other health conditions supported by Glutamine precursor (unspecified)
Athletic and Exercise AidsBody Building
Burns and Scalds
Cancer (natural therapy for)
Cancer Treatment (reducing side effects)
Chemotherapy (reducing side effects)
Convalescence
Cuts
Diabetes
Diarrhea
Digestion (poor)
Endurance (lack of)