Synopsis

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

DL-Methionine is a synthetic form of the essential amino acid methionine, which is used in both animal and human nutrition. Its use to support the hepatic system (liver health) is primarily backed by scientific evidence rather than traditional medicine. Methionine plays a critical role in methylation reactions, detoxification, and the synthesis of important molecules such as S-adenosylmethionine (SAMe), which is vital for liver function. In veterinary medicine, especially for cats and dogs, DL-Methionine is used as a dietary supplement to help manage urinary pH and can also provide hepatoprotective effects. In humans and animals, methionine deficiency can impair liver function and increase susceptibility to liver damage. Studies have shown that adequate methionine supplementation helps reduce the accumulation of fat in the liver (hepatic steatosis) and supports liver regeneration, particularly after injury or toxin exposure. However, excessive supplementation can be harmful, potentially increasing the risk of oxidative stress or liver injury in some cases. Thus, while there is a reasonable scientific basis for using DL-Methionine to support liver health, especially in cases of deficiency or increased metabolic demand, the evidence is moderate (not overwhelming), warranting a score of 3 out of 5.

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AHCC
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alpha-lipoic acid
amino acids
AMP-activated protein kinase (AMPK)
ampelopsin
andrographolide
animal protein
Antrodia camphorata
apigenin
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artichoke
baicalein
barberry
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berberine
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bile acid
bile salt
bitter principals
black garlic
black seed
Boerhavia diffusa
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borotutu
bovine
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bupleurum falcatum
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capillary artemisia
carqueja
catalpol
chanca piedra
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chlorogenic acid
cholic acid
Coenzyme A
corilagin
cruciferous
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curcumin
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cynarin
cynaropicrin
d-glucarate
dandelion
dehydrocholic acid
dihydrolipoic acid
dihydromyricetin
dithiolthiones
DL-Methionine
Eclipta
egg
emblicanin
epigallocatechin gallate (EGCG)
eriocitrin
ferulic acid
flavonolignan
fringetree
fungus
gallate
gamma-glutamylcysteine
ganoderma
garlic bulb
gentian root
Gentiana manshurica
Ginsenosides
glucose
Glycochenodeoxycholic acid
Glycocholic acid
Glycyrrhetinic acid
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gooseberry
green tea
Guggulsterones
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herbal blend (proprietary)
hesperetin
isoliquiritigenin
isosilybin
jiaogulan
Jurubeba
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L-ornithine
lecithin
lingzhi
liquid liver fractions
mangiferin
Maslinic acid
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Monoterpenes
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N-acetyl-cysteine (NAC)
Naringenin
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nicotinamide riboside
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oleanolic acid
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ornithine L-aspartic acid
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Oxymatrine
pantethine
parsley
Pentacyclic triterpenoids
phenolic compounds
Phenylpropanoids
phosphatidylcholine
phospholipids
Phthalides
Phyllanthus
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Picroside
Plukenetia volubilis
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polymethoxylated flavones
polyphenols
pu-er tea
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punarnava
riboflavin (vitamin B2)
S-allylcysteine
Salvianolic acid
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silymarin
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turmeric
vitamin B
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Other body systems supported by DL-Methionine

Bladder
Hair
Hepatic System
Immune System
Liver
Muscles
Nails
Skin
Urinary System

Products containing DL-Methionine

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