Candida albicans is an organism that lives in everyone's digestive system. If it gets out of control due to Antibiotic use, poor diet, illness, etc..., the resulting overgrowth can and does spread throughout your body. You need to kill it off, eliminate the toxins, and re-establish beneficial organisms in your digestive system to keep it under control. It's all in the Candida section of the website......and well worth reading.