Hibiscus tea is the
infusion made from the calyces (
sepals) of the
Hibiscus sabdariffa flower, a
herbal tea drink consumed both hot and cold by people around the world. It is also referred to as
roselle (another common name for the hibiscus flower),
jamaica in
Latin America,
karkady in the
Middle East,
bissap in
West Africa,
sorrel in
Jamaica, and
red sorrel in the wider
Caribbean, and other names in other regions. Hibiscus tea has a tart,
cranberry-like flavor, and
sugar is often added to sweeten the beverage. The tea contains
vitamin C and
minerals and is used traditionally as a mild medicine.
Hibiscus tea contains 15-30% organic acids, including citric acid, maleic acid, and tartaric acid. It also contains acidic polysaccharides and flavonoid glycosides, such as cyanidin and delphinidin, that give it its characteristic deep red colour.
Medical studies
A study published in the
Journal of Human Hypertension has shown that drinking hibiscus tea can reduce high
blood pressure in people with
type 2 diabetes. The study results showed the average systolic blood pressure for those drinking hibiscus tea decreased from 134.8 mmHg (17.97 kPa) at the beginning of the study to 112.7 mmHg (15.03 kPa) at the end of the study, one month later.
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