In stating that flax seeds should be ground for proper digestion rather than eaten whole, does this also go for Chia seeds and even other types of seeds?

Flaxseeds are unique because of their hard outer surface, which is difficult to chew and thus effectively release the nutrients contained therein. We recommend grinding flaxseeds for optimal nutrition. Chia and other seeds don't require grinding ...

from The World's Healthiest Foods http://ift.tt/1Q5aPrE