Supplements for heart palpitations

Written to our editorial standards · reviewed against published research· Updated 2 Jun 2026
Heart & circulation

Occasional benign palpitations can be linked to low magnesium and to caffeine and stress; magnesium supports a steady heart rhythm, but palpitations always merit a check.

Magnesium and potassium help regulate the heart's electrical activity, and a magnesium shortfall is associated with extra beats, which is why deficiency is worth excluding. Caffeine, alcohol, stress, and an overactive thyroid are common triggers of harmless palpitations.

Nutrients commonly linked

Magnesium Glycinate
See the guide →

Biomarkers worth checking

These are the blood tests most relevant here. Knowing your numbers tells you whether a supplement is the right answer.

Magnesium (serum)TSH
When to see a doctor

Palpitations with chest pain, breathlessness, fainting, or that are fast and sustained are an emergency. Even occasional palpitations should be mentioned to a doctor to rule out a rhythm or thyroid problem.

Beyond supplements

Reduce caffeine and alcohol, manage stress, and sleep well; see a doctor to be safe.

Common questions

What supplements help with heart palpitations?
Occasional benign palpitations can be linked to low magnesium and to caffeine and stress; magnesium supports a steady heart rhythm, but palpitations always merit a check. The nutrients most often linked are Magnesium Glycinate.
Which deficiencies are associated with heart palpitations?
Magnesium and potassium help regulate the heart's electrical activity, and a magnesium shortfall is associated with extra beats, which is why deficiency is worth excluding. Caffeine, alcohol, stress, and an overactive thyroid are common triggers of harmless palpitations.
When should I see a doctor about heart palpitations?
Palpitations with chest pain, breathlessness, fainting, or that are fast and sustained are an emergency. Even occasional palpitations should be mentioned to a doctor to rule out a rhythm or thyroid problem.

Explore further

More heart & circulation symptoms

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Educational use only, not medical advice, diagnosis, or treatment. Symptoms have many possible causes, and the nutrients here are commonly associated with this symptom, not a guaranteed fix. Always consult a qualified clinician, especially if symptoms are severe, persistent, or new.