The new low carb rolling rock is better than Ultra (IMHO).

Drinking is dangerous, in more ways than one. First it dehydrates you further, so you really really need to up the water intake if you are drinking. Second, you don't burn any fat or carbs while alcohol is in your system. Third, the booze makes you more likely to cheat on the diet

For specific drinks, check out drinksmixer.com It lists the carbs for many different drinks. But don't trust it's beer numbers, they use the same number for every beer, from guinness to bud.

--nw