3.5/5
Moderate
evidence
Heart health evidence brief
Garlic
Garlic supplements may modestly improve blood pressure and lipid markers, but effects depend on preparation, baseline risk, and study design.
Headline Finding
Blood-pressure meta-analyses report modest systolic and diastolic reductions, with stronger signals in people with hypertension.
Dose Context
Studies use varied aged garlic extract, powder, oil, or standardized preparations; food garlic does not map cleanly to capsule dosing.
Important Caveat
Marker improvements are not the same as proven reductions in heart attacks or strokes. Garlic can interact with anticoagulants and surgery planning.
Source Drawer
Linked Research
- Meta-analysis Blood pressure meta-analysis
- Trial Aged garlic hypertension RCT
- Meta-analysis Garlic lipid meta-analysis
- Review NCCIH garlic overview
- Safety Garlic safety and interactions
How To Read This Rating
The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.
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