Ingredient · Amino Acid
L-methionine
- Forms graded
- 2
- Dose zones
- 4
- Updated
- 1 Sept 2026
Every L-methionine form, graded
2 forms scored on published absorption evidence. This is the comparison no supplement brand will publish about its own products.
- ×1.5Superior absorptionNone graded here
- ×1.25Well absorbedFermented L-methionine
- ×1Reference formL-Methionine
- ×0.85Poor absorptionNone graded here
- Fermented L-methionineMultiplier×1.25
- L-MethionineMultiplier×1
Multipliers are applied to each ingredient's dose score when a product is graded. How multipliers are assigned.
How much L-methionine should you take?
SuppScore grades doses across evidence zones rather than against a single recommended figure. Scored information, not a recommendation.
- Zone 10 to 250 mg per dayLow dose
- Zone 2250 to 500 mg per dayGeneral maintenance dose
- Zone 3500 to 900 mg per dayFor deficiency or elevated need
- Zone 4900 to 1750 mg per dayTherapeutic dose
Zones describe what the evidence supports at a dose. They are not advice on what to take, and they do not replace a conversation with a doctor or pharmacist.
What is L-methionine good for?
Products containing L-methionine
Scored products that list it on the label, highest scoring first. Ordering is by SuppScore only. We have no commercial relationship with any brand shown.
References
Reviewed by the SuppScore advisory board
Every score on this page is computed from the SuppScore ingredient database using our published scoring rules. Our advisory board maintains those rules and the ingredient data behind them, and takes no payment from the brands whose products are scored.
Meet the advisory board · Last reviewed 1 Sept 2026
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