He hasn't, but I tested him a lot and he's pretty much always in the high 4's and doesn't spike after meals unless he has a mountain of carbs. Beer is especially bad, I've tested several of my friends (I'm great fun in the pub
) and they also spike but quickly fall back into range. There's a study done on cereal and non-diabetics, it's been posted here a few times, and it shows similar spikes even in young people. I think it's safe to say that eating masses of carbs every day isn't brilliant for your blood sugar, but unless you're on a carb-restrictive diet everyone spikes from time to time.