How it Works

Fibrosol Prebio works by moving down the digestive tract and being resistant to changes while moving through the small intestine. It then gets fermented in the large intestine. Its water binding capacity draws water to the stools, softening them and making it easier to pass out.

Physiological Process

Fibrosol Prebio is not digested in the small intestine


Bowel Regularity


After being consumed, Fibrosol Prebio moves down the digestive tract and does not get broken down in the small intestine.
When it reaches the colon (large intestines), due to its water binding capacity, it draws water in and causes softening of the stools.
At the same time in the colon, fermentation of Fibrosol Prebio occurs and results in the production of Short Chain Fatty Acids (SCFAs), gas and growth of healthy bacteria.
The release of SCFAs causes chemical stimulation of the peristaltic reflex and the contractions reduce intestinal transit time resulting in faster movements of bowels.
Fermentation of Fibrosol Prebio also produces gas and healthy bacteria which increase the bowel content and fecal bulk. This in turn helps bowel movement.*

Chemical Structure

Fibrosol Prebio is a unique soluble dietary fiber produced from starch by the combination of dextrinization and enzymatic treatments.
Fibrosol Prebio has well-developed branched chemical structure composed of not only 1-4 and 1-6 but also 1-2 and 1-3 glucosidic linkages.
The branched structure is resistant to human digestive enzymes and not absorbed in the small intestine. Therefore, Fibrosol Prebio reaches the large intestine, and is then partially fermented, with the residual unutilized excreted.
Fibrosol Prebio contains 85% soluble dietary fiber (AOAC Official Method 2001.03).

Clinically Proven Physiological Functions

A single-blind cross-over study conducted among 20 adult females who were suffering from constipation indicated increased stool frequency and fecal volume after a 14-day consumption of 4.8g/day of Fibrosol Prebio (J. Nutritional Food, 2001, 4(4); 21-27)
A N=5 cross-over study was conducted for 8 days in which subjects were administered 30g/day of Fibrosol Prebio. At the end of the study, results were conclusive showing a significant increase in growth of beneficial bacteria such as Bifidobacteria and Lactobacilli. (Laurentin and Edwards, 2004)
An in-vitro study which was conducted using human fecal dilution revealed that Fibrosol Prebio ferments gradually resulting in less flatulence (production of gas) in the intestines. (Journal of Nutrition, 2000; 130; 1267-1273)
A single-blind cross-over study conducted among 20 healthy adults indicated stabilized postprandial blood glucose/insulin levels after consumption of 5.7g of Fibrosol Prebio (J. Nutritional Food, 2002, 5(2); 31-39). Similarly, a single-blind cross-over study conducted among 13 healthy adults indicated stabilized postprandial serum triglyceride levels after consumption of 5.0g of Fibrosol Prebio (Eur J. Nutr , 2007, 46; 133 - 138)
A double-blind parallel study conducted among 38 healthy adults indicated stabilized chronic triglyceride levels and visceral fat after consumption of 10.0g of Fibrosol Prebio three times a day (J. Jpn. Soc. Study of Obesity, 2007, 13, 34-41)