Errrm if you want to eat grains then eat them?!
Many people feel better after eradicating grains, and often they never even felt all that bad in the first place. Do they care what this or that scientific study say? Probably not.
Instead of debating the rights and wrongs of the issue, just try cutting out all grains for 30 days and see what happens. You'll either feel better or you won't. If you feel better on grains or they don't seem to affect you negatively then eat them!
I honestly never though grains affected me badly, but I was struggling with my weight and sometimes low energy. When I stopped grains I lost some weight and felt less tired. When I slackened off and ate grains I again became more lethargic and found the weight creeping back a bit. I also find that my moods are worse when I eat grains than when I don't.
As it is I couldn't care less who "proves" that grains are good for you. My own experience is enough for me, and really that's all that should matter to anyone. Do what works for YOU whether that's paleo or primal or CW full of healthy whole grains and canola oil...