Since you never know what other errant component may do more harm than good. Other supplements though I just did my research on - like I was all about choline and high DHA fish oil to help their brains grow and it surely paid off when they arrived at 25 weeks to have some solid brain development behind them. In retrospect I would have taken some brewers yeast for the uridine content too and eating more uridine-rich foods. I would have also sought out foods to increase my superoxide dismutase levels. Hindsight though...ah well. I still did a pretty good job building my babies.