Evidence supporting the use of: L-alanyl-l-glutamine
For the health condition: Convalescence
Synopsis
Source of validity: Scientific
Rating (out of 5): 3
L-alanyl-L-glutamine is a dipeptide composed of the amino acids alanine and glutamine. It is used primarily to provide a stable form of glutamine, which is otherwise unstable in solution. Glutamine is considered a “conditionally essential” amino acid during periods of severe physiological stress, such as trauma, infection, and critical illness—conditions often associated with convalescence. During recovery, the body's demand for glutamine can outpace endogenous production, leading to depletion. Several clinical studies and meta-analyses have investigated glutamine supplementation (including as L-alanyl-L-glutamine) in hospitalized patients, particularly those recovering from surgery, trauma, or critical illness. Results suggest that supplementation can help maintain gut barrier function, modulate immune response, and may reduce infection rates and hospital stay duration.
While most robust evidence is available for critically ill or surgical patients, there is moderate scientific support for the use of L-alanyl-L-glutamine in supporting recovery during convalescence—especially when malnutrition or catabolic stress is present. However, evidence is less conclusive in otherwise healthy individuals recovering from minor illness. The 3/5 rating reflects that while there is reasonable scientific rationale and some clinical evidence, more high-quality, targeted studies are needed to define its benefit across all convalescent populations.
Other ingredients used for Convalescence
aloe veraalpha-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
Milk Protein
Mistletoe
Quinoa Protein
Other health conditions supported by l-alanyl-l-glutamine
Athletic and Exercise AidsChemotherapy (reducing side effects)
Convalescence
Dehydration
Diarrhea
Endurance (lack of)
Energy (lack of)
Exercise
Fatigue
Inflammation
Injuries
Surgery (healing from)
Wounds and Sores