Hibiscus
Hibiscus sabdariffa
also known as roselle
Moderate (blood pressure)
The deep red calyx of the roselle plant, sold as 'sour tea' in much of the world and as agua de jamaica in Latin America. Tart, refreshing, and one of the few culinary herbs with solid evidence for lowering blood pressure.
- Modestly lowers blood pressure with daily use — comparable in effect to some prescription starting doses in mild hypertension
- Modestly lowers LDL cholesterol
- Rich in the deep red antioxidant pigments found in dark berries
- May support liver function and metabolic health
- Mild diuretic action
- Pleasant tart flavor makes daily use easy — usually consumed as cold or hot tea
Use caution with blood pressure medications — additive lowering effect
Use caution with diuretics — additive water-loss effect
May reduce the effectiveness of acetaminophen by speeding its clearance from the body
May lower blood sugar — caution with diabetes medication
Skip during pregnancy — can stimulate the uterus
Research
- A Comparative Study of Iron Bioaccessibility and Antinutrient Levels in Hibiscus sabdariffa (Roselle) Leaves and Calyces and Persea americana (Avocado) Leaves and Seeds: Nutritional Implications.
- Fabrication of pH-Sensitive Bacterial Cellulose Films by Acetic Acid Fermentation of Anthocyanin-Rich Roselle (Hibiscus sabdariffa L.) Extracts for Real-Time Monitoring of Chicken Meat Spoilage.
- Comparison of Hibiscus sabdariffa L. extract and hydrochlorothiazide as adjuncts to Valsartan in managing hypertension in type 2 diabetic nephropathy: A randomized clinical trial.
Memorial Sloan Kettering About Herbs · EMA Herbal Medicinal Product Monographs · American Botanical Council HerbMedPro
You might also explore