I wouldn't say it's a "bad" idea.. but
With the exception of NSA syrup (my one occasional indulgence), alot of products are just loaded with all kinds of alternatives.
I think that from a health perspective, I try to eat as "basic" as possible.
Try to avoid aspartame, sugar alcohols, soy fillers and.. you know, monosodium poisonate.
Almost everything I eat has about 1-2 things on the ingredient label.
If I couldn't grow it/catch it/kill it.. I probably wouldn't eat it.
The one time I did try a low-carb something, I responded pretty badly to it. Try some products out - find out if your system agrees with them, and go from there.