In the UK, drinking black tea is very common. Using data from the UK Biobank, researchers from the UK National Institutes of Health conducted a study to assess the association between tea consumption and all-cause and cause-specific mortality. They also assessed the use of common tea companions (milk and sugar), the temperature of the tea and how it affects peoplecoffeeWhether there is a differential link between genetic variation in metabolic rate.
The UK Biobank included data on 500,000 men and women aged 40 to 69 who completed a baseline questionnaire between 2006 and 2010. Of these people, 85% reported drinking tea regularly, and 89% of them reported drinking black tea. Participants who reported drinking two or more cups of tea a day had a 9%-13% lower risk of death compared with those who didn’t drink tea. This association was observed while taking into account other factors, such as whether the participants also drank coffee, added milk or sugar to the tea, the temperature of their preferred tea, or genetic variants associated with caffeine metabolism.
The researchers believe that their findings suggest that even higher intakes of tea can be part of a healthy diet.