It's highly recommended you take some kind of choline supplementation with piracetam, be it elemental choline (alpha GPC), lecithin, or something else. The reason being that the 'racetams work synergistically with acetylcholine precursors and some people have reported headaches, etc without them. As for the fishy smell thing I've never heard that before nor have I had any problems with body odor in the past when I was taking 600mg alpha GPC daily for several months.