Unsweet tea yes or no
I dont think so lol but some people say it is
Caffeine is different for everybody but tea is lower than coffee...
Besides that, Nah, depending on the tea, some believe its quite healthy!
Green tea has a good healthy reputation but personally I had to quit it after figuring out it was making my joints hurt..switched to white tea.
I drink my tea unsweetened, but with a splash of lemon juice.