Can magnesium help heart palpitations?
Yes — when palpitations are driven by low magnesium (common with diuretics, PPIs, or alcohol), 300–400 mg of magnesium taurate or glycinate daily often reduces them within 2–4 weeks. New, frequent, or symptomatic palpitations should always be evaluated by a doctor first.
Last updated 27 June 2026
How magnesium stabilises heart rhythm
Magnesium is essential for the Na/K-ATPase pump that maintains the electrical gradient across heart cells. Low magnesium = unstable repolarisation = premature beats and palpitations.
Best form: taurate
Magnesium taurate combines magnesium with the amino acid taurine, which itself has membrane-stabilising effects on cardiac cells. Glycinate is a close second.
When to see a doctor first
Palpitations with chest pain, breathlessness, fainting, or that last more than a few minutes — always seek medical evaluation before self-treating with supplements.
Frequently asked
- Is magnesium safe with beta-blockers?
- Yes, generally — no significant interaction, but tell your GP.
- How fast will I notice fewer palpitations?
- Often within 1–2 weeks; full effect 4–6 weeks.
Educational content — not medical advice. Health claims comply with EU Regulation 1924/2006 and the Union Register of authorised claims (Regulation 432/2012). Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle. Always consult your GP or pharmacist before changing supplements, particularly if you take prescription medication or have kidney disease.