Methionine is one of the essential amino cids which is not produced by the body, and must be provided by the diet. It supplies sulphur and other compounds required by the body for normal metabolism and growth. Methionine is needed to produce another sulphur containing amino acid, L-Cysteine, which is a powerful anti-oxidant.

Meat, fish, and dairy are all good sources of methionine. Vegetarians can obtain methionine from whole grains, but beans are a relatively poor source of this amino acid.

What it does

  1. Lipotropic Agent:
    Methionine inhibits the accumulation of fatty deposits in the liver and promotes the excretion of bile facilitating the removal of toxins in the faeces.
  2. Liver Protection: Needed to manufacture cysteine, which neutralises compounds damaging to the liver. Also helps reduce sluggish liver function due to excessive fatty build-up.
  3. Detoxifier: Through its conversion to SAMe, methionine aids detoxification of numerous toxins, free radicals and by-products of metabolic and hormonal waste.
  4. High Histamine Disorders: Certain cases of schizophrenia and depression are often associated with high histamine levels. Methionine can increase the rate at which histamine is degraded by methylation and seems most successful in people with schizophrenia who are also depressed.
  5. Anti-Allergic: Due to its ability to detoxify histamine, Methionine appears to reduce the severity of reactions to both food-related and respiratory allergens.
  6. High oestrogen levels: Methionine may facilitate the removal of excessive oestrogen in the body by promoting its inactivation in the liver and excretion with bile.

Potential Uses

Hayfever Fibroids Sluggish liver function
PMS Detox Endometriosis
Food allergies


Methionine may be beneficial used alongside acetaminophen, methotrexate and gentamicin.

It is advised to ensure adequate intake of vitamin B6, B12 and folic acid when taking high levels of l-methionine to prevent it’s conversion to homocysteine.

People with bi-polar (manic) depression should not take Methionine or SAMe.

Best avoided by pregnant women and nursing mothers.

Sufferers of neoplastic disease should avoid .

Caution with schizophrenia, hepatic and renal failure, methionine should only be used under medical supervision.

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