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Magnesium Taurate Benefits: Heart Health, Blood Pressure, Dosage and Safety

Magnesium taurate is magnesium bound to taurine. See what magnesium and taurine research shows for blood pressure and heart rhythm, the doses studies used, the 350 mg daily supplement limit, and who should not take it.

Published

January 28, 2026

Last updated

October 23, 2026

Read time

11 min read

Medically reviewed by

Rhonda Collins, FNP-C

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Magnesium taurate is magnesium bound to the amino acid taurine, and people mostly choose it for heart and blood pressure support. The evidence comes from magnesium and taurine studied separately: in a meta-analysis of 34 trials, magnesium supplements lowered blood pressure by about 2/1.8 mmHg on average ^[1], and in a 12-week trial in prehypertension, 1.6 g of taurine a day lowered clinic blood pressure more than placebo ^[2]. For adults, the tolerable upper intake level for magnesium from supplements is 350 mg a day, and higher doses are for clinician-directed use only ^[3].

What Is Magnesium Taurate?

Magnesium taurate (also sold as magnesium taurinate) is a magnesium salt of taurine, a sulfur-containing amino acid found in high concentrations in heart muscle. Each dose supplies two things: elemental magnesium, which is the number on the Supplement Facts panel, and taurine.

The reason to pick it over other forms is the pairing. Magnesium and taurine have each been studied for blood pressure and heart function. Whether the combination adds benefit beyond magnesium alone has not been tested in trials of magnesium taurate itself, so the findings below describe magnesium and taurine studied separately.

What Is Magnesium Taurate Good For?

These are the benefits most often attributed to magnesium taurate, with what the research behind each one actually shows.

1. Blood Pressure

• Magnesium: a 2016 meta-analysis of 34 randomized, placebo-controlled trials with 2,028 adults found that magnesium supplementation, at a median of 368 mg a day for a median of 3 months, lowered systolic blood pressure by 2.00 mmHg and diastolic blood pressure by 1.78 mmHg ^[1]. That median is slightly above the 350 mg supplemental upper limit and was given within supervised trials.
• Taurine: in a 2016 randomized trial of 120 adults with prehypertension, 1.6 g of taurine a day for 12 weeks lowered clinic systolic blood pressure by 7.2 mmHg, compared with 2.6 mmHg on placebo. The effect was largest in people with high-normal blood pressure, and the trial also reported better blood vessel dilation ^[2].
• The combination: no trial has tested magnesium taurate itself for blood pressure.

Magnesium is not a substitute for blood pressure treatment, and it can add to the effect of blood pressure medication.

2. Heart Rhythm

• Severe magnesium deficiency can cause abnormal heart rhythms ^[3].
• In the Framingham Heart Study, 3,530 adults without heart disease were followed for up to 20 years. Those in the lowest quarter of serum magnesium were about 50% more likely to develop atrial fibrillation than those with higher levels. That is an association, not proof that supplements prevent it ^[4].
• Intravenous magnesium is used in hospitals for some acute arrhythmias. That is a clinical treatment, separate from oral supplements, and whether oral supplements prevent arrhythmias is not established.

3. Heart Failure Research

In a small 1992 double-blind trial of 17 people with congestive heart failure, 3 g of taurine a day for 6 weeks improved an echocardiogram measure of the heart’s pumping function, while the comparison group on coenzyme Q10 showed no such change ^[5]. This was taurine on its own, in a very small study, not an outcome trial. Heart failure is treated with prescribed therapy, and no trial has tested magnesium taurate for it.

4. Magnesium Status and Cardiovascular Risk

In a 2013 meta-analysis of 16 prospective studies with more than 313,000 people, higher circulating magnesium was associated with a 30% lower risk of cardiovascular disease per 0.2 mmol/L, and higher dietary magnesium was associated with a lower risk of ischemic heart disease ^[6]. These are observational associations, and the authors called for clinical trials to test whether magnesium lowers that risk.

5. Blood Vessel Function

Taurine improved both endothelium-dependent and endothelium-independent blood vessel dilation in the prehypertension trial ^[2]. Arterial stiffness tends to increase with age, which is one reason vascular function is studied. Trials of magnesium taurate itself on arterial health are lacking.

Magnesium Taurate Dosage: What Studies Used

There is no established magnesium taurate dose for heart health. Studies tested magnesium or taurine separately, and the doses below are elemental magnesium or grams of taurine as those studies reported them, not personal recommendations.

• The upper limit: the Food and Nutrition Board set the tolerable upper intake level (UL) for magnesium from supplements and medications at 350 mg a day for adults. The UL does not count magnesium from food ^[3].
• Magnesium for high blood pressure: trials in the 2016 meta-analysis used a median of 368 mg of elemental magnesium a day for a median of 3 months. The authors found that 300 mg a day, or 1 month of use, was enough to raise serum magnesium and lower blood pressure ^[1]. Doses at or above the 350 mg UL were given within supervised trials.
• Taurine for blood pressure: 1.6 g of taurine a day for 12 weeks in adults with prehypertension ^[2].
• Taurine in heart failure research: 3 g a day for 6 weeks in a small trial ^[5].

Supplemental magnesium doses above 350 mg a day are for clinician-directed use only, for example when testing confirms a deficiency. Reported blood pressure changes were modest and gradual.

Magnesium Taurate Dosage for Heart Palpitations

There is no studied magnesium taurate dose for palpitations or for preventing arrhythmias, and oral supplements are not a treatment for a diagnosed arrhythmia. Palpitations have many causes, so new or frequent palpitations need a medical evaluation. When low magnesium is the cause, the relevant goal is correcting the deficiency, within the same 350 mg a day supplemental limit unless a clinician directs otherwise ^[3].

Split Dosing vs. Once Daily

Blood pressure trials dosed magnesium once or twice a day ^[1], and no trial has compared the two for magnesium taurate. For daily intake targets by age and sex, see magnesium dosage by age. For combining magnesium with other supplements, see the magnesium stacking guide.

Is It Safe to Take Magnesium Taurate Every Day?

For most healthy adults, magnesium taurate is generally well tolerated for ongoing use at intakes within the 350 mg a day supplemental upper limit ^[3]. It is not risk-free. Very high doses can lead to magnesium toxicity, with low blood pressure, nausea and vomiting, muscle weakness, and irregular heartbeat, and the risk rises with impaired kidney function because the kidneys clear excess magnesium ^[3]. People with the conditions below should not take it on their own initiative.

Magnesium Taurate Side Effects

Diarrhea is the most common side effect of supplemental magnesium, and it can come with nausea and abdominal cramping. These effects are dose-related: they are more likely at higher intakes ^[3]. Magnesium taurate is often described as gentler on digestion than magnesium oxide, but it is not immune to these effects, especially at higher doses. Taking it with food or splitting the dose are common ways people reduce stomach upset.

Who Should Not Take Magnesium Taurate?

People with any of these conditions should not take magnesium taurate without their clinician’s direction:

• Kidney disease, because the kidneys remove excess magnesium and impaired function raises the risk of toxicity ^[3]
• Heart block (second- or third-degree AV block)
• Myasthenia gravis, a muscle weakness disorder that magnesium can worsen

Magnesium also interacts with several medicines, including some antibiotics, bisphosphonates, diuretics, and blood pressure medication, whose effect it can add to ^[3]. If you have a diagnosed heart condition or take heart-rhythm, blood pressure, or diuretic medication, talk with your prescribing clinician before starting it. For the full list of interactions and how far apart to take them, see the magnesium safety guide.

Which Magnesium Is Better, Glycinate or Taurate?

Neither is better overall; they suit different goals. Magnesium glycinate (bisglycinate) pairs magnesium with glycine and is the form most often chosen for sleep and calm, with a 2025 trial behind it. Magnesium taurate pairs magnesium with taurine and is the form chosen for heart and blood pressure support, though its evidence comes from magnesium and taurine studied separately. Both are less likely to cause a laxative effect than oxide or citrate, and the elemental magnesium per serving matters more than the form. For a side-by-side guide to every common form, see which magnesium is right for you, or read more on magnesium bisglycinate benefits.

What Time of Day Should You Take Magnesium Taurate?

No study has compared times of day for magnesium taurate, so the best time is the one you can keep consistent. Many people take it in the evening, and taking it with a meal can reduce stomach upset. For how timing differs between forms and goals, see magnesium timing: morning vs. night.

How to Check Your Magnesium and Heart Health

Magnesium Status

Serum magnesium is the standard blood test, but most of the body’s magnesium sits in bone and inside cells, so serum levels correlate poorly with total body stores and no single test is a perfect measure ^[3]. RBC magnesium measures the magnesium inside red blood cells and is often used alongside serum magnesium. Interpret either result against the reference range printed on your lab report.

Cardiovascular Markers

• Blood pressure, measured at home or in the clinic, is the outcome the trials above measured.
• Lipid panel (total cholesterol, LDL, HDL, triglycerides)
• ApoB, which counts the cholesterol-carrying particles that can build up in artery walls
• hsCRP, a marker of inflammation
• Homocysteine

Other Tests a Clinician May Order

• EKG (heart rhythm)
• Coronary artery calcium (CAC) scan (calcified plaque in the heart’s arteries, for adults 40 to 75 with at least one heart risk factor)
• Carotid ultrasound (arterial health)

Test This with Mito

Testing shows where your magnesium stands before and after a change in diet or supplements. Mito Health offers these options with physician-guided interpretation:

• Magnesium, RBC Blood Test: measures the magnesium inside red blood cells, a view of cellular status that complements serum magnesium.
• Magnesium Blood Test: the standard serum magnesium test, useful for catching low or high blood levels.
• Build Your Own panel: select RBC magnesium and vitamin D à la carte for repeat tracking. Member pricing starts at $5.44 for RBC magnesium at Labcorp where available, before the $11.50 draw fee.
• How Mito testing works: walks through sample collection, turnaround, and how the physician-guided interpretation report is delivered.

See current per-test and panel pricing in the blood test price comparison.

How to decide which test fits your situation:

• Symptoms of low magnesium (cramps, fatigue, palpitations) with no recent labs: Magnesium, RBC Blood Test, since a normal serum result does not rule out low cellular stores.
• Taking a magnesium supplement and checking for too-high levels, or have reduced kidney function: Magnesium Blood Test, which reflects the blood level that toxicity raises.
• Tracking response 8 to 12 weeks after changing your magnesium intake: Build Your Own with RBC magnesium retested at 12 weeks.

Track Your Progress

• How to Improve Your Magnesium, RBC Level Naturally

Related Content

• Best Magnesium Supplements 2026: Brands Ranked by Quality
• Which Magnesium Is Right for You?
• Magnesium Safety Guide

Key Takeaways

Two compounds, studied separately: Magnesium and taurine each have roles in cardiovascular physiology; the combination itself has not been trialed
Blood pressure: Magnesium trials show average reductions of about 2/1.8 mmHg; one taurine trial reported larger reductions in prehypertension
Heart rhythm: Low magnesium is associated with a higher risk of atrial fibrillation in a population study
Doses studied: Magnesium blood pressure trials used a median of 368 mg/day; the taurine blood pressure trial used 1.6 g/day
Upper limit: 350 mg a day of magnesium from supplements for adults; higher doses are for clinician-directed use only
Side effects: Diarrhea, nausea, and cramping are the most common and are dose-related
Who should avoid it: People with kidney disease, heart block, or myasthenia gravis, unless a clinician directs it
Testing helps: RBC and serum magnesium together give a fuller picture than either alone

Medical Disclaimer

This article is for educational and informational purposes only and does not constitute medical advice. The information provided should not be used for diagnosing or treating a health condition. Always consult with your doctor or qualified healthcare provider before starting any new supplement protocol, making changes to your diet, or if you have questions about a medical condition.

Individual results may vary. The doses described here are the amounts used in research, not personal recommendations, and any supplement decision should be individualized, especially if you have existing health conditions or take medications.

References

1. Zhang X, Li Y, Del Gobbo LC, et al. Effects of Magnesium Supplementation on Blood Pressure: A Meta-Analysis of Randomized Double-Blind Placebo-Controlled Trials. Hypertension. 2016;68(2):324-33. PMID: 27402922 | DOI: 10.1161/HYPERTENSIONAHA.116.07664

2. Sun Q, Wang B, Li Y, et al. Taurine Supplementation Lowers Blood Pressure and Improves Vascular Function in Prehypertension: Randomized, Double-Blind, Placebo-Controlled Study. Hypertension. 2016;67(3):541-9. PMID: 26781281 | DOI: 10.1161/HYPERTENSIONAHA.115.06624

3. National Institutes of Health, Office of Dietary Supplements. Magnesium: Fact Sheet for Health Professionals. Updated January 6, 2026. ods.od.nih.gov

4. Khan AM, Lubitz SA, Sullivan LM, et al. Low serum magnesium and the development of atrial fibrillation in the community: the Framingham Heart Study. Circulation. 2013;127(1):33-8. PMID: 23172839 | PMCID: PMC3541701

5. Azuma J, Sawamura A, Awata N. Usefulness of taurine in chronic congestive heart failure and its prospective application. Jpn Circ J. 1992;56(1):95-9. PMID: 1538580 | DOI: 10.1253/jcj.56.95

6. Del Gobbo LC, Imamura F, Wu JH, et al. Circulating and dietary magnesium and risk of cardiovascular disease: a systematic review and meta-analysis of prospective studies. Am J Clin Nutr. 2013;98(1):160-73. PMID: 23719551 | PMCID: PMC3683817