One's metabolism deals with excess of heavy metal by storing them into bones and tissues, and this simply because if they remain in the blood stream it is deathwhich ensues. A huge part of the candida protocol is to clear these heavy metals out - while allowing the body to keep coping. My solution has been to take breaks - do the cleanses diet + antifungals while alternating the kidney/liver/bowel cleanses. And allowing for breaks in between to let your body resume its equilibrium and store some nutrients it needs before starting over again.
I was completely heald of candida (or so I thought) and back to a normal diet. It came back recenty after a few months and I believe I still have a bit of chelation to do before I can be completely healed of systemic candida.