Evidence supporting the use of: L-taurine
For the body system: Circulatory System

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Synopsis

Source of validity: Scientific
Rating (out of 5): 4

L-taurine is an amino sulfonic acid that has been studied for its roles in cardiovascular health. Scientific evidence suggests that taurine contributes to the regulation of blood pressure, improvement of lipid profiles, and prevention of atherosclerosis. Human clinical trials and animal studies have shown that taurine supplementation can have antihypertensive effects, likely due to its capacity to modulate calcium signaling, support vasodilation, and reduce sympathetic nervous system activity.

Notably, a 2012 review in the journal Hypertension Research highlighted taurine’s ability to lower blood pressure in both animal models and human subjects with mild hypertension. Other research has demonstrated that taurine may help decrease cholesterol and triglyceride levels, and protect against endothelial dysfunction, which is a precursor to cardiovascular disease.

The Japanese population, known for its low rates of ischemic heart disease, generally consumes higher levels of taurine, further supporting epidemiological links between taurine intake and cardiovascular health. Taurine’s antioxidant and anti-inflammatory properties may also play a role in protecting heart tissue from oxidative stress.

While taurine is not a replacement for conventional cardiovascular therapies, and not all studies show strong effects, the bulk of available evidence—especially from animal and small human trials—supports its beneficial impact on the circulatory system. Larger, long-term human studies would further clarify its therapeutic potential.

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