The researchers acknowledge that some variables were not controlled for in their study, including the strength of the tea, steeping time, or serving size. They also cannot prove that black tea was responsible for reduced mortality.

Dr. Inoue-Choi explained: “This study showed an association […] but our findings need to be replicated in other studies […] and extended to other diverse populations as well.”

Dr. Inoue-Choi stressed the most important message from their study:

“Higher tea intake was associated with lower risk of mortality, particularly in those drinking more than 2 cups a day. However, our findings do not indicate that people should start drinking tea or change their tea consumption to seek health benefits.”