There are several ways that the immune system is supported on the Plan. The Detox Essentials supports the Th1 response necessary for eliminating excess yeast/fungus. The probiotics also support the Th1 response, and fruits help to support the immune system responses. Sweating can also work to support the immune system by reducing the toxic burden on the body and via lysozymes contained in the sweat. Increaseing body temperature has also been shown to be an effective therapy with infections, hence fevers.
Immune system dysregulation tends to be a limiting factor for people being able to improve their health, but not really a factor in converting candida back to its normal yeast form.
Correcting fungal candida, supporting healthy immune system responses, restoring healthy intestinal flora and detoxifying the body all help to restore balance to the intestinal flora.