Supplement·Interactions·Reviewed June 9, 2026
L-Methionine interactions.
L-Methionine has 4 documented interactions in the NutriStack database: 4 that work synergistically. The full list, with what each pairing does, is below.
L-Methionine at a glance.
A quick, data-grounded summary. The full table is below.
L-Methionine has 4 documented interactions in the NutriStack database: 4 that work synergistically. The full list, with what each pairing does, is below.
Everything that interacts with l-methionine.
Every supplement and medication in the NutriStack database with a documented interaction with this substance, highest-severity first. Open any pair for the mechanism and sources.
| Substance | Interaction | What happens |
|---|---|---|
| Glycine | Synergy | Glycine is the acceptor substrate for GNMT, a main enzyme that buffers excess methylation potential created when L-Methionine raises SAMe. Adequate... |
| Methylfolate | Synergy | Methylfolate is the methyl donor that enables homocysteine remethylation to methionine via methionine synthase. |
| Vitamin B12 | Synergy | Methionine is recycled from homocysteine via B12-dependent methionine synthase; adequate B12 is required to handle methionine load without raising... |
| Vitamin B6 | Synergy | Vitamin B6 is the obligate cofactor for the transsulfuration enzymes that clear the homocysteine generated when L-Methionine is metabolized. In... details → |
The full l-methionine profile.
Benefits, dosing by goal, forms, and the cited evidence for this supplement.
Common l-methionine questions.
Quick answers drawn from the table above.
What interacts with L-Methionine?
In the NutriStack database, L-Methionine has 4 documented interactions with other supplements and medications. The most notable include Glycine, Methylfolate, Vitamin B12, and Vitamin B6.
What works well with L-Methionine?
L-Methionine pairs synergistically with Glycine, Methylfolate, Vitamin B12, and Vitamin B6 in the NutriStack database. Synergy still depends on dose and timing; open any pair for the detail.
Can you take L-Methionine with Glycine?
NutriStack classifies the L-Methionine and Glycine pairing as synergy: Glycine is the acceptor substrate for GNMT, a main enzyme that buffers excess methylation potential created when L-Methionine raises SAMe. Adequate glycine helps... No avoidance needed; this is a supportive pairing. If using L-Methionine alongside a higher-protein or methylation-supportive regimen, ordinary...
Check your whole stack
See how l-methionine fits your routine.
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