Omega 6 fatty acids aren't bad for you, and there are many different ones, some of which are as good for you as omega 3 fatty acids, such as GLA. As for seaweed being a source of DHA
, it is generally believed that the DHA
in seaweed isn't absorbed by humans. It is absorbed by fish, which is where the fish get the DHA from in the first place -- eating seaweed, particularly red seaweed, which is usually not digestible for humans.