There are countless fantastic teas out there that are full of flavoursome naturally sweet, without any added sugar.
There are herbal teas that are berry-, citrus-, mint- or fruit-flavoured, and many black teas with a sweet and flavorful twist.
If you are a traditional tea-drinker and you put several spoonfuls of sugar in the cup, notice how many teaspoons you use. Then consider adding less. Keep decreasing the content over time (perhaps months).
You will notice how your palate shifts and the body adjusts to less sweetness. And if you are drinking tea products in cans and bottles, read the ingredients!
Choose tea without any added sugar; then, if you must, add some sugar yourself. Take ownership of how much sugar you drink.
Sometimes jaggery or gud is also good for tea. Gud is used in place of sugar in some states and some tribal areas.