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Limited evidenceHeart & metabolic

Magnesium Taurate

Marketed as the "heart" magnesium on the strength of a 1996 hypothesis paper, not trial data. Magnesium as a class lowers blood pressure by about 2 mmHg; there is no controlled human trial showing the taurate salt does anything the cheaper salts do not.

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What the science says

  • The cardiovascular rationale is a published hypothesis, not a finding Limited evidence

    The entire premise traces to a 1996 Medical Hypotheses paper arguing that magnesium and taurine have complementary vascular-protective actions and should therefore be combined. That is a mechanistic argument written to prompt research, and the confirmatory human research was never done.

  • Magnesium lowers blood pressure modestly — as any salt Moderate evidence

    A meta-analysis of 34 randomised double-blind placebo-controlled trials (2,028 participants) found a median 368 mg/day for a median 3 months reduced systolic BP by 2.00 mmHg (95% CI 0.43-3.58) and diastolic by 1.78 mmHg (95% CI 0.73-2.82). That effect belongs to magnesium, not to taurate, and is small relative to any antihypertensive drug.

  • Direct human data on the taurate salt are one uncontrolled study of a combination product Limited evidence

    A 2026 single-arm observational study gave 121 low-risk adults with elevated BP a magnesium taurate-potassium citrate product (121 mg elemental magnesium, 180 mg potassium) plus lifestyle counselling for 3 months, reporting roughly -11/-8 mmHg. With no control group, added lifestyle advice and potassium in the same capsule, nothing can be attributed to taurate; the authors say so explicitly. Everything else is rodent work, such as a 2019 study in cadmium-hypertensive rats.

Dosage & safety

Studied doseTypical products supply 100-250 mg elemental magnesium per day. Magnesium taurate is only about 9% elemental magnesium by weight, so a 1,000 mg dose gives roughly 90 mg elemental plus around 800 mg taurine — read labels carefully, because low elemental content is this form's real practical weakness. No dose has been established for the taurate salt specifically.
SafetyWell tolerated; taurate is among the gentler forms on the gut, and taurine itself is well tolerated to at least 3 g/day. Standard magnesium cautions apply: dose-dependent loose stools, and real hypermagnesemia risk in advanced kidney disease. Separate by 2 hours from tetracyclines, quinolones, bisphosphonates and levothyroxine. Neither magnesium nor taurine is prohibited in sport.

How to take it

TimingEvening if you are taking it for relaxation or sleep; otherwise timing does not matter.
With food?Either way — taurate is among the gentler magnesium forms on an empty stomach.
Worth knowingCheck the elemental magnesium figure: taurate is only about 9% magnesium, so most products deliver far less magnesium than the capsule size suggests.

Interactions

With medications

  • tetracycline and quinolone antibiotics

    magnesium chelates them and reduces absorption separate by at least 2 hours

  • levothyroxine

    reduced levothyroxine absorption separate by at least 4 hours

  • bisphosphonates

    blocked absorption separate by at least 2 hours

With other supplements

  • separate taurine supplements

    a 1,000 mg magnesium taurate dose already carries roughly 800 mg of taurine count it toward your taurine intake before adding more

Well-established interactions only — this is not a complete list. Always tell your doctor and pharmacist what you take.

Frequently asked questions

Is magnesium taurate good for the heart?

There is no controlled human trial showing magnesium taurate does anything for the heart that cheaper magnesium salts do not. The 'heart magnesium' idea comes from a 1996 hypothesis paper, and the confirming research was never done.

Does magnesium taurate lower blood pressure?

Magnesium in general lowers blood pressure modestly, by about 2 mmHg systolic in a meta-analysis of 34 trials. That effect belongs to magnesium, not to the taurate form, and it is small compared with any blood pressure drug.

How much elemental magnesium is in magnesium taurate?

Magnesium taurate is only about 9% elemental magnesium, so a 1,000 mg dose gives roughly 90 mg of magnesium plus around 800 mg of taurine. Check the elemental figure, because most products deliver less magnesium than the capsule size suggests.

Scientific references

Where to buy

Nutricost, Magnesium Taurate, 240 Capsules (500 mg per Capsule)

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