There are several popular alternatives to tea that are naturally caffeine free. For example, Rooibos, or Aspalathus linearis, is a caffeine-free alternative to black and green tea. Rooibos was traditionally harvested by the Khoisan nomadic ethnicities of South Africa and is known for its high levels of oxidants. Dutch settlers used Rooibos, which means “Red Bush” in Dutch, as an alternative to tea in South African during colonial times.
Today, rooibos is grown exclusively in the Cederberg Mountain region of the Western Cape. Rooibos is rich in minerals like iron. Recently, some clinical studies suggest that the flavonoids in rooibos tea can be beneficial in reducing oxidative stress. Aspalathin and nothofagin are the main flavonoids, or type of polyphenols, found in Aspalathus linearis and have stronger anti-oxidative activity than other flavonoids.