@northoftheborder
Well, everyone is listing them as high glycemic index because of the processing, along with corn flakes etc, so you can do better. And OK, I haven't eaten any commercial cereal for many years, and I wouldn't touch Cheerios because I don't touch non-organic oats if I can help it because of glyphosate, and prefer organic grains for all purposes (but seldom can be that picky in restaurants).

If eaten with some berries, nuts, and low-fat milk, and after some protein (yes, even an egg or two), I wouldn't think a single serving of plain Cheerios would be so awful - but I'd want to see, there is also this "resistant starch" phenomenon and a lot of packaged products end up accidentally doing this good thing, which apparently does not show on most GI listings. The fancier sweetened Cheerios with eleven artificial colors, flavors, and preservatives, forget about them.

I see even fruit juices are listed with more moderate GI numbers and that's crazy talk, that stuff goes to your blood glucose in seconds - which is good news if you're having a hypoglycemic episode but not otherwise. Maybe I need a deep dive into what's going on with GI ratings overall.