Hibiscusand Blood pressure.
Evidence gradeA
ImpactModerate
Confidencehigh
Imported rating. This grade comes from SuppCo and has not been independently reviewed. It describes research, not a product, and it is not medical advice.
The rating
- Direction
- Favourable
- Rated by
- SuppCo
- Observed
- 28 September 2026
Studies behind it
Hibiscus sabdariffa L. tea (tisane) lowers blood pressure in prehypertensive and mildly hypertensive adults.Diane L McKay · The Journal of nutrition2010OUP accepted manuscriptNutrition Reviews2021Effect of sour tea (Hibiscus sabdariffa L.) on arterial hypertension: a systematic review and meta-analysis of randomized controlled trialsC. Serban · Journal of Hypertension2015