Evidence Level
Garlic Extract (Aged / Allicin): Garlic is a well-researched supplement known for its benefits in cardiovascular health, particularly in blood pressure regulation and cholesterol management. A meta-analysis by Ried et al. (2016), which included 20 randomized controlled trials with 970 participants, found that garlic supplementation significantly lowers blood pressure in hypertensive individuals, with a mean reduction of 8.7 mm Hg in systolic and 6.1 mm Hg in diastolic readings.
Matsumoto et al. (2016) conducted a randomized, double-blind, placebo-controlled study involving 55 patients with metabolic syndrome to assess the effects of aged garlic extract on coronary artery health. The results indicated that aged garlic extract significantly reduced low-attenuation plaque progression compared to placebo, suggesting its potential role in slowing atherosclerosis.
Sobenin et al. (2008) evaluated the lipid-lowering effects of time-released garlic powder tablets in a randomized, double-blind, placebo-controlled study with 42 men. The findings demonstrated significant reductions in total and LDL cholesterol levels, highlighting the cholesterol-lowering benefits of garlic supplementation.
The distinction between aged garlic extract (standardized to S-allylcysteine) and allicin-based products lies in their clinical evidence and tolerability. Aged garlic extract has consistently shown favorable outcomes across multiple studies, making it a preferred option for cardiovascular health support.