Black Tea Flavonoids: A Focus on Thearubigins and their Potential Roles in Diet & Health

Bond JT, Derbyshire JE
2020 Nutrition and Food Technology Open Access  
The potential health benefits of black tea are well documented but the specific roles of thearubigins are less widely published. We undertook a review to identify human observational studies and laboratory studies investigating inter-relationships between thearubigin intakes and health. Twenty-two publications were identified-five observational studies and 17 laboratory/mechanistic studies. Evidence from observational studies demonstrates that black tea is a major dietary provider of
more » ... s, with reported intakes of 327 mg/d in the UK, a nation of tea drinkers but lower in Europe (156 mg/d). A growing body of evidence (from laboratory/cell studies) signifies that thearubigins could have potential health roles, including antioxidant, antimutagenic and anticancer properties, along with the ability to reduce inflammation and improve gastrointestinal motility. Well-designed human trials are now needed to further investigate thearubigin intakes from dietary sources in relation to specific health outcomes.
doi:10.16966/2470-6086.168 fatcat:uhpl5nhqnncepdv2mh6gr2a3ha