I have to make a living somehow, and we'd be getting into medical advice very quickly in this thread. The ASI gives a good general idea of which direction to go with the various nutrients.
The nutrient angle is the direction I would go, yes. Along with making sure various lifestyle issues are addressed as well as possible (ie. sleep, major cutbacks in metcon and sparring/rolling).
Feel free to give my office a call and we can chat, I worked with Josh this way.