When it comes to what is variously known as intestinal yeast overgrowth, fungal-type dysbiosis, gut fermentation syndrome, or simply Candida, it is safe to say that prevention is much simpler than cure. Ignored by the conventional medical establishment, people affected by this condition often struggle to treat themselves to alleviate their many symptoms which can range from fatigue, muscle aches and pains, and general malaise to cognitive symptoms such as poor concentration and memory, and mood disturbances including depression, anxiety, irritability, restlessness, and mood swings. Most of these symptoms are likely the result of the chronic absorption of toxins produced by Candida (or whatever fungal organism is the problem), primarily ethanol and acetaldehyde, and the consequences these substances have on metabolic functions.
For more information see:
Candida and Gut Dysbiosis
My Candida Hell - Chronic Ethanol and Acetaldehyde Poisoning
To avoid developing this awful condition in the first place...