White bread is just syntactic sugar for simpler sugars, and destructures into them in your gut.

Probably depends on your white bread. My understanding is that any glycemic delta in white bread is primarily a function of the fiber. White bread without fiber is, to a first approximation, sugar.

> White bread has a higher glycemic index than sugar.

Doesn't seem to be so: http://nutritiondata.self.com/topics/glycemic-index

A lot of white bread has actual sugar or high-fructose corn syrup in it as an ingredient. How much of that is to start the yeast and how much is for taste varies by brand.

Whole-grain/white can be misleading as far a sugar goes. I've had whole-grain brands that were so sweet that I couldn't stand to use them for sandwiches.

For further reference (as it seems I've been downvoted possibly for my own snark on this one) - since I can no longer edit the original comment, here are some references

This appears to be the one I recall: http://calmerthanyouare.org/2015/03/19/betteridges-law.html

My numbers were off it's actually 46% "non-polar", 20% "yes", 16% "maybe" and, 15% no

https://news.ycombinator.com/item?id=9232419

Additionally there was a publication in a statistical journal which also discussed the "phenomenon" http://link.springer.com/article/10.1007/s11192-016-2030-2 which also found that it wasn't a factual assertion (in academic papers).

Anyways - if the downvote was for something other than my own snark I'd love to hear what it was.

Apologies for coming off as a jerk.