Iced Tea can be a healthy alternative to soda. Here is a quick and easy iced tea recipe. For this, use your favorite tea but a nice English Tea would work well.
Add a few tea leaves to a bottle of water. Put in the refrigerator overnight. Since the tea leaves brew without any heat, there are no tannins in the drink. Brewing your iced tea this way does not require you to add any sweeteners to the drink.