Which is better for you diet lipton green tea or Diet Coke?

Green tea, avoid sodas.

Even diet sodas are bad for you.

Stick to water

Kaz's two cents: the "diet" part of the name tells me that it is artificially sweetened. check the label. some of those bottled teas are made from tea flavouring, not actual tea... if that's the case it's no different for you than the Diet Soda.

I agree with the last line.... stick to water!