Whole Grains are Bad For you? I read this just today?

All grains are different, but the main thing in grains are fiber and the B-Vitamins. So essentially, all whole grains are are Empty Calories. You can get plenty of fiber and nutrients from other sources. I also read that eating whole grains is bad for your teeth, joints, can cause inflamation, it's bad for your gut, even though it's complex carbs it's still processed as sugar. So I just want your opinions on the matter