[4] In Sudan, people use hibiscus tea, or karkadé, in folk medicine to treat many health conditions.
Pharmaceutical researchers who have studied specimens from Sudan have suggested that its efficacy may relate to its anthocynanins, chemicals that can boost immune responses and combat inflammation, diabetes, cancer, and viral infections.
In the English-speaking Caribbean, the drink, called sorrel, is made from the calyces, and it is considered an integral part of Christmas celebrations.
The Caribbean Development Company, a Trinidad and Tobago brewery, produces a Sorrel Shandy in which the tea is combined with beer.
In American soul food cuisine, hibiscus tea is included in a category of "red drinks" associated with West Africa.
[9] In Italy, hibiscus tea, known as carcadè or karkadè (from the Arabic word كَرْكَديه [karkaˈdiːh]), is usually consumed hot, often with the addition of sugar and lemon juice or orange slices.
First introduced from Eritrea, it was widely used as a tea substitute when the country was hit by trade sanctions for its invasion of Abyssinia.