I would just like to add that some people are very sensitive to sorbitol and sorbate salts, even in the small amounts found in sugar free chewing gum or breath fresheners/mints. Even Hershey's (and even Russell Stover and Whitman's) puts sorbitol in their non-dietetic candies...which was a horrible event for me on a camping trip one summer! Hershey's told me via phone that they don't have to put warnings on packages unless the sorbitol is more than 50gm/serving. I believe people can have significant bowel reactions with amounts that are very small.

Foods containing sorbitol are common now because sorbitol is a humectant, and keeps things moist and chewy. It is now showing up on IBS websites as a potential cause/trigger for irritable bowel syndrome (IBS).
http://en.wikipedia.org/wiki/Sorbitol

If you are one of those unfortunates, beware that Ora-Blend SF could cause significant diarrhea or upset. If you are the constipated type, you probably would welcome Ora-Blend SF.