"Hot: serving sizes vary check the label for recommended amount. Choose whole grain and slow-cooking varieties (no instant types) with at least 3g fiber and no more than 2g sugar."
My understanding is the reason we don't do "instant" is because it affects blood sugar in a different manner than slow cooked. I am going to buy Steel Cut Oats next time because chickies here have shared that they just add the water the night before and then can just pop it in the micro in the morning.
Just keep in mind that "multi-grain" doesn't necessarily mean "whole grain". And the reason we avoid "instant" is because it's been too processed and the "germ" has been removed.
Make sure you check the ingredients and see if the first ingredient listed is a whole grain.