L-methionine
Also called: Methionine
An essential amino acid that supplies sulfur. Your body uses it to make SAMe, glutathione, and the protein in hair and nails.
Medical Disclaimer
Supplements can interact with medications and aren't right for everyone, especially during pregnancy or breastfeeding, or with a chronic condition. Ask your provider before you start.
Studied for
- Hair and nail support (limited evidence)
- Liver support
- Making urine more acidic, as in some urinary tract formulas (limited evidence)
Found naturally in
- Eggs
- Fish, chicken, and beef
- Dairy
- Brazil nuts and sesame seeds
Label red flags
- Hair and nail blends that hide amounts in a proprietary mix
Check with a provider
- High homocysteine, heart disease, or a history of blood clots. Methionine can raise homocysteine.
- Liver disease, especially cirrhosis
- Schizophrenia. Large amounts have worsened symptoms.
- Taking levodopa for Parkinson's. Methionine may make it less effective.
- Pregnancy or breastfeeding
Usually found in hair, skin, and nail formulas, liver and detox formulas, urinary tract formulas. Browse the Lesher Wellness store
Parts of the body it affects
Explore what each area does and the conditions that can affect it.
Liver
Your liver filters your blood, processes hormones and medicines, and makes bile to digest fat.
Hair
Hair is often one of the first places to show what's happening inside the body. Changes in shedding or thickness can point to nutrient, thyroid, hormone, or autoimmune causes.
Illustrations: Servier Medical Art, CC BY 4.0
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Dr. Lesher is a Naturopathic Doctor who focuses on autoimmune and chronic conditions in women. Since 2020, she's helped hundreds of patients stop managing symptoms and start healing.