Green tea is highly recommended and if you are going to drink black tea (the same plant as green tea but roasted not fermented), then avoid the milk and sugar.
“If you have to choose between tea or coffee, it’s probably better to drink tea…”
Dr Nicolas Danchin, MD, University of Paris Rene Descartes, September 2014.
Those drinking tea “had a 24% reduced risk of dying from noncardiac causes, relative to drinkers of coffee”.
Study of 131,401 adults, by Nicolas Danchin, MD, of the University of Paris Rene Descartes, as presented to the European Society of Cardiology in September 2014.