Back in our early days, we tried pop rocks once (which I honestly think was done more just to see what kind of mental reaction he could get out of me) and a mint lifesaver (also just once; it ended up getting "accidentally" spit into my vagina, and he had to fish it out).
No. Sugar and vaginas don't mix. I also don't like food in the bedroom during sex at all. Although, My Man seems to think we should find a way to incorporate bacon into sex.
OINK. I keep hearing about the sugar/yeast infection thing, but honestly, with EXTERNAL kissing, oral from pop rocks and such, we have NEVER had any issues at all with infection. Wonder if we are just lucky or if the problem is grossly over rated. There is a TOOTH GUARD that is designed to be "worn" during oral...it is STRAWBERRY CANDY and I bet it is sugar filled. I have used it a few times on him,and him on me. I think it is called HEAD CANDY.