The study and its comparison
Fifty patients with treated but uncontrolled hypertension were randomized to aged garlic extract or matching placebo while continuing existing treatment. The extract dose was 960 milligrams daily with quantified S-allylcysteine. [1]
The favorable systolic finding occurred in participants with baseline systolic pressure of at least 140 millimeters of mercury. Those starting below that threshold did not show a significant between-group change. [1]
What the finding establishes
A comparison with placebo cannot establish equal effectiveness to an antihypertensive drug. The extract also differs from raw garlic used in food. Funding and conflicts were not established from the abstract. The study does not justify replacing prescribed treatment or promise cardiovascular-event prevention. [1]
A hypothetical distinction
Imagine a paper compares a supplement with placebo. Similarity to a drug’s effect in another study is not a head-to-head result.
| Detail | Interpretation |
|---|---|
| Measured outcome | Keep the endpoint specific |
| Study preparation | Not every retail product |
| Remaining uncertainty | Not resolved by a mechanism |

Sources for this article
- Aged garlic extract lowers blood pressure in patients with treated but uncontrolled hypertension: a randomised controlled trial.
Source consulted: 2026-09-19. This is a reference resource, not a claim that we conducted the studies or tested a product.