At offset 10:31 in the Whole Grain Hierarchy video by Brenda Davis, she divides grains into 3 categories which may be called 'awesome!', 'great' and 'avoid' categories.

(Image derived from Whole Grains by Brenda Davis)

AWESOME:

• Intact Whole Grains: Awesome! See Intact Whole Grains.

GREAT:

• Broken Whole Grains are great! Examples: steel cut oats, cracked wheat ('dalia'), and coarse grained cornmeal. See Broken Whole Grains.
• Rolled Whole Grains: Okay. See Rolled, Flaked & Shredded Whole Grains.

AVOID: Brenda encourages those pursuing weight loss or tackling diabetes to drop all of these from their diet:

• Shredded Whole Grains: Avoid. See Rolled, Flaked & Shredded Whole Grains.
• Ground Whole Grains (Flours): Avoid. See Whole Grain Flours.
• Flaked Whole Grains: Avoid. See Rolled, Flaked & Shredded Whole Grains.
• Puffed / Popped Whole Grains: Avoid.

What about whole grain pasta and bread? For a discussion, see Whole Grain Bread & Pasta.

Why are intact whole grains the best? Why should we avoid pulverized or ground whole grains (whole grain flours)? Why are puffed whole grains the worst? Brenda Davis offers a high level overview of the science. For details, see The Science Underlying Whole Grains Hierarchy.

How to eat whole grains?

• Raw, Soaked
• Cook Them!
• Sprout Them!