Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Garlic (Allium sativum) has a long history of use in traditional medicine for cardiovascular and circulatory health, but its application in modern contexts is also supported by scientific evidence. Multiple clinical studies and meta-analyses indicate that garlic supplementation can have a modest but significant effect on factors related to poor circulation, such as blood pressure and blood viscosity. Allicin, a major bioactive compound in garlic, is thought to contribute to vasodilation and improved endothelial function, potentially enhancing blood flow. Some studies have demonstrated that garlic can reduce systolic and diastolic blood pressure in hypertensive patients, while others report improvements in lipid profiles and arterial stiffness, both of which are associated with circulatory health.

However, the overall effect size is generally considered modest, and results are somewhat variable depending on the preparation of garlic (raw, aged extract, powder, oil) and the population studied. The American Heart Association acknowledges these effects but emphasizes that garlic should not replace standard medical therapies for circulatory disorders. Nonetheless, the combination of historical use and moderate-quality scientific evidence supports garlic’s role as a supplementary approach for supporting circulation, particularly in cases of mild impairment or as an adjunct to conventional therapies.

In summary, while garlic’s benefits for poor circulation are not universally dramatic, there is a reasonable body of clinical evidence supporting its use, justifying a moderate evidence rating.

More about Garlic
More about Circulation (poor)

Other ingredients used for Circulation (poor)

Other health conditions supported by Garlic

Products containing Garlic