Beverage
Hibiscus Tea
6/10 Moderate evidence
Tart red herbal infusion from Hibiscus sabdariffa flowers; clinical trials show modest but consistent blood pressure reduction.
Active compounds
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Anthocyanins
Reduce vascular oxidative stress and improve endothelial function
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Hibiscus acids
Mild ACE-inhibitor activity contributing to blood pressure reduction
Helps with
Practical tips
- Preparation
- Steep dried calyces in hot water 5-10 minutes; enjoy hot or iced
- Recommended amount
- 2-3 cups daily, studied for blood pressure benefit
- Absorption
- Cold-brewing for 1-2 hours extracts anthocyanins gently and reduces tartness
- Cautions
- May enhance the effect of antihypertensive medications; can interact with chloroquine