I tried Dr. B's method for checking for glucose in food by chewing up a bit of the the questionable food (and mixing it with saliva) and placing in on the Diastixc to see if there is any change in color whatsoever.

I tried it and got -- no glucose -- great -- but being a scientist and the eternal skeptic, I tried it on pure table sugar as a "control" and guess what -- no glucose -- I suppose I can start eating sugar based on this test I think not.

What might I be doing wrong -- how long do you keep it in your mouth? Has anyone ever tried this?

Any advice will be much appreciated.