Hibiscus and Hypertension: what the evidence supports
Each entry’s own grades, side by side. A grade says how strong the evidence is for one outcome — it does not rank one entry over the other.
Compound or practice
Hibiscus
Hibiscus tea reliably lowers blood pressure a few points — one of the better food-based options.
Grade B1 graded outcomerevised Jul 10, 2026
A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.
Outcome map
Hypertension: what the evidence supports
8 graded interventions for hypertension, ranked by strength of evidence.
Grade B8 graded outcomesrevised Jul 10, 2026
Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.
Graded in both
Outcomes are matched by name. Two entries can describe the same outcome in different words, so one listed further down may still be graded in the other.
No outcome has the same name in both entries. They may still overlap under different wording — read the two lists below.
Graded only in Hibiscus
- Blood pressure Moderate effectEvidence grade B
Graded only in Hypertension: what the evidence supports
- Magnesium Unclear effectEvidence grade B
- Potassium Unclear effectEvidence grade B
- Garlic Unclear effectEvidence grade B
- Cocoa Flavanols Unclear effectEvidence grade B
- Hibiscus Unclear effectEvidence grade B
- Olive Leaf Extract Unclear effectEvidence grade C
- Grape Seed Extract Unclear effectEvidence grade C
- Nattokinase Unclear effectEvidence grade C
Conditions
Only in Hibiscus
- Hypertension ImprovesEvidence grade B
Only in Hypertension: what the evidence supports
None.
What each entry says about the other
- Hypertension: what the evidence supports’s entry · Goes with: Grade B
Both columns are read from the entries as they stand in this library. A comparison is not advice to take either one, and it is no substitute for a clinician who knows the person.