NutriStack
Symptom·Immune·Reviewed May 30, 2026
Supplements for Frequent canker sores / mouth ulcers.
When frequent canker sores / mouth ulcers is the complaint, these are the supplements most often associated with it in the NutriStack library, ranked by how directly each one targets it and by the strength of the evidence.
Ranked by relevance, top first.
Relevance reflects how directly each supplement targets this symptom in the NutriStack map. Evidence is the supplement’s own rating. Open any name for the full profile.
- 01MethylcobalaminModerate80% match
Vitamin B12 deficiency is associated with recurrent aphthous ulcers, and repletion may reduce their frequency, with some trials suggesting benefit even when blood levels appear normal.
SuggestedSublingual methylcobalamin - 02IronModerate70% match
Iron deficiency is one of the hematinic deficiencies repeatedly associated with recurrent mouth ulcers, and correction can reduce recurrence.
SuggestedFerrous bisglycinate - 03MethylfolateLimited66% match
Low folate impairs rapid mucosal cell turnover and is linked to recurrent oral ulceration, so repletion may aid healing.
SuggestedL-methylfolate - 04ZincLimited62% match
Zinc supports mucosal integrity and wound healing, and supplementation may shorten or reduce ulcers in people who are deficient.
SuggestedZinc picolinate or gluconate - 05L-LysineLimited55% match
Lysine is sometimes used for oral lesions and may have a role in tissue repair, though evidence for canker sores specifically is limited.
SuggestedL-lysine
Build your stack
Every match traces to a full profile.
These rankings come from the same library that powers the NutriStack app. Open any supplement for full dosing, forms, interactions, and citations.