Evidence supporting the use of: L-glutamine
For the health condition: Convalescence

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

L-glutamine is an amino acid that plays a crucial role in immune function, intestinal health, and the repair and maintenance of tissues, which is why it has been investigated for its potential to support convalescence (the period of recovery after illness or surgery). Scientific evidence suggests that during periods of severe physical stress—such as trauma, surgery, burns, or critical illness—glutamine levels in the body can become depleted. Supplementation in these contexts has been shown to help maintain gut barrier integrity, reduce infection rates, and support immune function.

Several clinical studies and meta-analyses have found that glutamine supplementation in hospitalized and critically ill patients may reduce complications, shorten hospital stays, and promote recovery. For example, glutamine has been added to parenteral nutrition regimens to improve outcomes in patients recovering from surgery or critical care. However, results are somewhat mixed, with some trials showing benefit and others not demonstrating significant effects, especially in well-nourished individuals or those with less severe illness.

Overall, while glutamine is not universally endorsed for all patients in convalescence, there is moderate scientific evidence supporting its use in specific populations where deficiency or high demand is likely. It is important for supplementation to be tailored to individual needs and clinical contexts, as routine use in all convalescent patients is not backed by strong, universal evidence.

More about L-glutamine
More about Convalescence

Other ingredients used for Convalescence

Aloe vera
alpha-ketoglutarate (AKG)
amino acids
arabinogalactan
astaxanthin
astragalus
beta-glucan
bilberry
black currant
bovine
bovine liver
branched-chain amino acids
bupleurum falcatum
cat's claw
caterpillar mushroom
chlorella
colostrum
cordyceps
turmeric
elderberry
eleuthero
fish protein
garlic bulb
ginger
gotu kola
grape
green tea
iron
L-alanyl-L-glutamine
L-cysteine
L-glutamine
L-glycine
Lactoferrin
Lentinula edodes mycelia
licorice root
liquid liver fractions
Milk
ornithine alpha-ketoglutarate
pollen
pomegranate
protein
pyrroloquinoline disodium salt
quail egg
reishi mushroom
shiitake mushroom
spirulina
vitamin C
vitamin D
Whey protein
Zinc
jiaogulan
bee pollen
lingzhi
haliotis
cistanche
ganoderma
royal jelly
fulvic acid
goji berry
Algae
Alcohol
animal Tissue
antler
ambergris
Auricularia
Albumin
Andrographis
Algal protein
Alkylglycerols
animal protein
butter
blackthorn
Beef Protein
beef
Beef liver
bone marrow
bovine protein
bacteria
BCAA
Bupleurum
bird\'s nest
Chinese mountain ant
coriolus mushroom
Codonopsis
Chinese pond turtle
Centella asiatica
chicken
dialyzable leukocyte extract
D-Ribose
Dipeptide
egg
elk antler
Euglena gracilis
Egg protein
flat-stem milk-vetch
fat liver oil
fatty acids
fibroblast growth factor
Gnaphalium
Glutamine
Glucan peptides
Growth factors
Globulins
Glutathione
hydroxymethylbutyrate
HMB hydroxymethylbutyrate
leucine alpha-ketoglutarate
lactalbumin
lactoglobulin
lipids
Mineral ascorbate
Marine protein
malt
Milk Protein
Mistletoe
polysaccharides
Peptides
Quinoa Protein
Rubia yunnanensis
Smartweed
Shark Liver Oil
Shellfish
Sarivan
Trametes

Products containing L-glutamine

Douglas Laboratories 5-HTP Plus Formula
Designs For Health Amino-D-Tox™
Designs For Health Amino-D-Tox™
Pure Encapsulations Amino-NR
Pure Encapsulations Amino Replete
Designs For Health BCAA Powder with L-Glutamine
Metagenics Clear Change 10-Day Detox Program with UltraClear Plus Berry
Metagenics Clear Change 10-Day Detox Program with UltraClear Plus pH
Metagenics Clear Change 10-Day Detox Program with UltraClear Plus pH Pineapple Banana
Metagenics Clear Change 10-Day Detox Program with UltraClear Plus Pineapple Banana
Metagenics Clear Change 10-Day Detox Program with UltraClear Plus Vanilla
Metagenics Clear Change 10-Day Detox Program with UltraClear RENEW Berry
Metagenics Clear Change 10-Day Detox Program with UltraClear RENEW Vanilla
Metagenics Clear Change 28-Day Detox Program with UltraClear Plus Berry
Metagenics Clear Change 28-Day Detox Program with UltraClear Plus pH Pineapple Banana
Metagenics Clear Change 28-Day Detox Program with UltraClear Plus pH Vanilla
Metagenics Clear Change 28-Day Detox Program with UltraClear Plus Pineapple Banana
Metagenics Clear Change 28-Day Detox Program with UltraClear Plus Vanilla
Metagenics Clear Change 28-Day Detox Program with UltraClear RENEW Berry
Metagenics Clear Change 28-Day Detox Program with UltraClear RENEW Chai
Metagenics Clear Change 28-Day Detox Program with UltraClear RENEW Vanilla
Integrative Therapeutics Detoxication Factors
Integrative Therapeutics Detoxication Factors
Thorne EnteroMend NSF
Pure Encapsulations EpiIntegrity
Pure Encapsulations G.I. Fortify
Pure Encapsulations G.I. Fortify
Pure Encapsulations G.I. Integrity
Pure Encapsulations G.I. Integrity
Designs For Health GI Revive®
Designs For Health GI Revive®
Metagenics GI Sustain™ Powder
Metagenics Glutagenics® powder
Integrative Therapeutics Glutamine Forte Drink Mix
Vitabase HGH Complex
Designs For Health IBSynergy™
Klean Athlete Klean Essential Aminos + HMB®
Klean Athlete Klean Isolate ™
Thorne L-Glutamine
Pure Encapsulations l-Glutamine
Designs For Health L-Glutamine
Douglas Laboratories L-Glutamine
Pure Encapsulations l-Glutamine 500 mg
Pure Encapsulations l-Glutamine 850 mg
Pure Encapsulations l-Glutamine 850 mg
Designs For Health L-Glutamine Powder
Designs For Health L-Glutamine Powder
Douglas Laboratories L-Glutamine Powder
Thorne L-Glutamine Powder NSF
Pure Encapsulations Liver G.I. Detox
Thorne MediClear Plus
Integrative Therapeutics Multiplex-1 No-Iron
Douglas Laboratories Muscle Protect™ with HMB®
Designs For Health Neurolink™
Integrative Therapeutics Nutrivitamin No-Iron
Pure Encapsulations PureBi•Ome™ G.I.
Metagenics Ultra Potent-C 1000
Metagenics Ultra Potent-C Chewable
Metagenics UltraClear Plus® Detox Powder
Metagenics UltraClear Plus Detox Powder Berry
Metagenics UltraClear Plus Detox Powder Pineapple/Banana
Metagenics UltraClear Plus pH Detox Powder Pineapple/Banana
Metagenics UltraClear Plus pH Detox Powder Vanilla
Metagenics UltraClear RENEW Detox Powder Berry
Metagenics UltraClear RENEW Detox Powder Chai
Metagenics UltraClear RENEW Detox Powder Vanilla
Pure Encapsulations UltraDetox 10-Day Pure Pack
Metagenics UltraGI Replenish® Chocolate
Metagenics UltraGI Replenish Chocolate
Metagenics UltraGI Replenish Vanilla
Metagenics UltraGI Replenish Vanilla
Metagenics UltraInflamX Plus 360°® Chocolate/Orange
Metagenics UltraInflamX Plus 360° Mango
Metagenics UltraInflamX Plus 360° Mango
Metagenics UltraInflamX Plus 360° Orange
Metagenics UltraInflamX Plus 360° Original Spice
Metagenics UltraInflamX Plus 360° Pineapple/Banana
Metagenics UltraInflamX Plus 360° Pineapple/Banana