Fructooligosaccharides Fos(FOS) is a mixture of oligosaccharides (GF2, GF3, GF4) which are composed of fructose units connected by ß (21) links. These molecules are terminated by a fructose unit. The total number of fructose or glucose units (Degree of Polymerization or DP) of oligofructose ranges mainly between 2 and 4.

Fructooligosaccharides Fos(FOS), is also know as Fructo- oligo,
it directly enters into large intestine without being digested and absorbed by human body, and in intestine it rapidly promotes reproduction of bididobactirium and other probiotics, so it is also called "Bifidus Factor". 

1. Bifidobacteria proliferation factor, and promote intestinal peristalsis, prevent constipation and diarrhea.
2. For high blood lipids, hypertension and arteriosclerosis and other cardiovascular diseases have a better improvement.
3. Promote natural vitamins and folic acid formation, enhance immunity and resistance to disease.
4. Protect the liver and prevent chronic diseases and cancer.
5. Promote the body's absorption of calcium, magnesium, iron and other minerals. Promote bone growth and development, and prevent from osteoporosis

As food ingredients for dairy products, beverages, baked goods, candy, cakes, flavoring materials and a variety of health-care products, functional foods, etc.