Try to read the whole article at Dr. Wilson's site, and see if the rest of it makes sense to you. He speaks of other issues after that, other ways to resolve additional nutrient absorption problems, and recommends simple supplements for better health. Ultimately going back to his recommended proper way of eating.
I myself became interested in his method through reading the article and have began investigating more of his suggestions.
The link by the way, contains an eBook - which I intend to read perhaps this weekend.