No diet coke isnt really good for anything except maybe cleaning your battery cables on your car!!!
I have noticed, that the more diet coke you drink, the more you want, and the hungrier you get.... In all actuality, diet coke seems to make you eat more.... The best bet is to drink lots of water, and herbal teas preferably without sweeteners.
God is and all is well
~John Greenleaf Whittier~