My mother went on a Candida diet (similar diets are mentioned in the links below) and it really helped her. It is worth checking because as the article you linked says it had a very real effect on my mother lifestyle.
http://www.thecandidadiet.com/
http://altmedicine.about.com/b/a/123489.htm
http://candidapage.com/candiet.txt
You can get more information from the national Candida society
