Don't know how "toxic" sugar might be. At least if you take it orally. Maybe I should throw away my Gatorade. Ha! Ha!!
But an M.D. once told me that if you have a minor open wound on your skin, and no antibiotic close at hand, that you can treat it by placing excess sugar on the surface of the wound. Just pour on sugar, then apply a bandage over the top. Apparently the idea is that the sugar will create a local environment that is not balanced for microorganisms. If I understood this advice correctly, the M.D. was saying that you need quite a lot of sugar. Not just a little - in order to create anaerobic conditions.
I'll be quite honest - I have no idea if this suggestion is correct. But maybe someone here knows, or has heard of it.
Pete #2