The fermentation processes carried out by the colon microflora (mainly Bifido-bacterium and Lactobacillus bacteria; Fooks and Gibson, 2002) generate short-chain fatty acids (SCFA), including acetic acid, propionic acid and butyric acid, which is most readily metabolized by intestinal mucosa cells, providing them with energy and improving the absorption of mineral substances (Steer, 2000). SCFA are vital to many biological functions. The main purpose of these acids is to exert a positive influence on colon mucosa and to regulate cholesterol and triglyceride synthesis in the liver. As a result of biochemical and morphological disturbances in gnotobiotic mice, their daily requirement for energy increased by as much as 30% (Wostman et al., 1983)