I've scanned rapidly through this link. It seems to give decent advice except for one thing. If you eat a diet high in omega-6 you cannot realistically consume enough omega-3 to balance it out. So you have to cut out as much omega-6 out of your diet as possible. So basically that means cutting out almost all industrial oils (which means cutting out pretty much all processed food, even the low-carb ones). It also means trying to obtain grass fed meat as much as possible and minimize grain fed meat (and that means grain-fed chicken too).

A good way to improve your health is to cut out the 3 horses of the "diseases of civilization” apocalypse. Gluten (especially wheat), sugar (especially HFCS), and omega-6 industrial oils.

And last but not least, Vitamin D and Magnesium. But I'll let Hutchinson do that bit, he's our resident expert.