Anything ending in -ol is a sugar alcohol and many of them cause gas and if you eat enough, diarrhea. Things like Malitol, Sorbitol, Xylitol (to a lesser extent) all are sugar alcohols. Things end in -ose are sugars: sucrose, glucose, fructose, dextrose.

There is one sugar alcohol that doesn't cause gas or diarrhea because it is excreted via urine, doesn't gone down the intestines and feed the bacteria, it is called erithrytol or erythritol, can't quite remember where the y goes.

You can actually get splenda dilluted in water as opposed to maltodextrin but it is hard to get ahold of.