Dysbiosis results from abnormal fermentation in the small intestine.

In the large intestine, some fermentation is desirable because it produces butyrate and other short chain fatty acids that nourish the cells of the intestinal wall. In the small intestine, however, growth of yeast, fungi and/or fermenting bacteria can result in damage of the gut lining, absorpsion of toxic by-products, and impaired absorption of nutrients.

Internal human ecosystem:
Dysbiosis describes the state of health of the internal human ecosystem or gastrointestinal system. Everthing that enters the mouth ultimately undergoes variious forms of digestion. Any imbalance within the human ecosystem(gastrointestinal system) will disturb not only digestion but predispose people to nutritional deficiencies and numerous health problems. This occurs particularly when pathogenic microorganisms take up residence in the crypts located between the folds(known as villi) of the small intestine. Each specie of microorganism produces potentially harmful digestive byproducts and toxic chemical compounds that can be absorbed into the blood stream, causing predisposition to health problems that are often undiagnosed or misdiagnosed.

Many people who have food allergies, dietary irregularities and nutritional imbalances have, unknown to them, internal gastrointestinal dysbiosis producing generations of toxic chemicals. These chemicals not only alter digestion by allow those toxic chemicals to enter the blood stream and cause systemic health problems.