A recent study showed you need to grind chia seeds in order to get the Omega-3 benefits!!
David C. Nieman, Nicholas Gillitt, Fuxia Jin, Dru A. Henson, Krista Kennerly, R. Andrew Shanely, Brandon Ore, MingMing Su, and Sarah Schwartz. The Journal of Alternative and Complementary Medicine. July 2012, 18(7): 700-708. doi:10.1089/acm.2011.0443.