The easy answer is refrain from drinking soda. However, some of us love it and drink it once or twice a day. I recently had a friend that had given up diet soda because of the sweeteners and said "screw it...sugar is probably less harmful, so I quit diet drinks" - as he sipped a 20 oz regular coke. I told him we didn't live in a country that used sugar and it is high fructose corn syrup which is far worse.
That being said...if you were forced to choose, would you continue on with:
A)Soda with HFCS
B)Diet soda with artificial sweeteners
C)Real sugar sodas like Sierra Mist and Mexican versions of Sprite, Coca Cola etc..