I personally wouldn't if you are trying to lose weight. The sugar alcohols tend to be a problem even though companies trying to sell product are trying to push them as being okay. There is a really good article on it here:

http://forum.lowcarber.org/showthread.php?t=182859

Ultimately it's something you will just have to play with to see if it effects you but I really would save them for days on the go or as a rare treat and not part of my daily menu. Whole food is always the best choice if you have the option.