The science of hibiscus tea: what research shows

Updated 16 October 2026. Zobo is a familiar Nigerian drink made from hibiscus. This article reviews evidence for hibiscus tea, not a NutriQure finished product.

Can zobo (hibiscus tea) lower blood pressure?

Some small trials and reviews found lower average blood pressure with hibiscus than with a comparison drink or placebo, but preparations, doses and participants varied. That evidence does not show that a home-brewed cup reliably treats hypertension or works as well as prescribed medicine. Measure your blood pressure and discuss persistent high readings with a clinician.

How should someone in Nigeria use that evidence?

Zobo recipes differ: the amount of dried hibiscus, sugar and other ingredients changes what you drink. An unsweetened preparation may fit an eating pattern, but adding a lot of sugar changes its nutritional profile. The research does not establish a standard home recipe or a treatment dose. If you take blood-pressure medicines, discuss regular use with a clinician and continue prescribed treatment unless your prescriber advises otherwise.

What is established about weight, liver health and skin?

Human studies do not establish that ordinary hibiscus tea removes liver fat, blocks dietary fat or improves skin elasticity. Lab mechanisms and changes in biomarkers are different from demonstrated clinical outcomes. We have removed those stronger claims from the earlier version of this article.

When should you get advice?

Seek medical advice for repeated elevated blood-pressure readings, dizziness or symptoms. If you are pregnant, breastfeeding, take regular medicines or have a long-term condition, ask a qualified clinician about concentrated hibiscus products. For general heart-health reading, see our Heart & Circulation collection; no finished supplement has been shown here to treat hypertension.

Sources

1. Systematic review and meta-analysis of hibiscus trials
2. Review of randomized trials in mild-to-moderate hypertension
3. Systematic review noting uncertainty for treatment recommendations