Evidence supporting the use of: L-glycine
For the health condition: Convalescence
Synopsis
Source of validity: Scientific
Rating (out of 5): 2
L-glycine is a non-essential amino acid involved in numerous physiological processes, including protein synthesis, neurotransmission, and immune modulation. Its use during convalescence—the recovery period following illness or surgery—is based on its roles in tissue repair, immune function, and metabolic regulation. Scientific evidence suggests that glycine supplementation may support recovery by promoting collagen synthesis (important for wound healing), enhancing antioxidant defenses (by contributing to glutathione synthesis), and modulating inflammatory responses. Several animal studies have shown that glycine administration can improve healing and reduce tissue damage after injury or surgery, likely by reducing inflammation and oxidative stress.
However, direct clinical studies in humans specifically targeting the use of glycine for general convalescence are limited. Some studies have examined its benefits in specific contexts, such as wound healing or recovery from major trauma, with modest positive results. A few clinical trials have noted improved healing rates and reduced hospital stays in surgical patients receiving glycine-enriched formulas, but the evidence is not consistently robust or widespread. Overall, while there is plausible scientific rationale and some supportive preclinical and clinical evidence, the totality of data is not strong enough to unequivocally recommend glycine as a primary intervention for convalescence. Thus, its use can be considered scientifically plausible with limited evidence, meriting a rating of 2 out of 5.
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
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Animal Tissue
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