Effects and Benefits of Fructooligosaccharides
Jul 05, 2021
Source: Cainiu Health
Dr. Chen Dongfeng
Introduction
1. Relieves constipation: Fructooligosaccharides (FOS) are low-molecular-weight, water-soluble dietary fibers that absorb water, thereby softening stools.
2. Regulates blood lipid levels: FOS exert an auxiliary hypolipidemic effect, primarily mediated through modulation of the gut microbiota.
3. Enhances nutrient absorption: Current evidence suggests that FOS promote calcium absorption, partly by upregulating the expression of calbindin-D9k (calcium-binding protein) in the intestinal mucosa.
Fructooligosaccharides (FOS), also known as oligofructose or sucrose-based oligosaccharides, are naturally present in many commonly consumed fruits and vegetables. Structurally, FOS consist of a sucrose molecule linked via a β-(1→2)-glycosidic bond to one to three fructose units, forming kestose (fructotriose), nystose (fructotetraose), and fructopentaose—linear hetero-oligosaccharides composed of fructose and glucose. So, what are the functions and health benefits of fructooligosaccharides? Below, we address this question.
Functions and Health Benefits of Fructooligosaccharides
1. Relieves Constipation
Fructooligosaccharides belong to low-molecular-weight, water-soluble dietary fiber. They absorb water in the intestine, softening stool and facilitating its passage without causing diarrhea. Long-term consumption may lower serum cholesterol levels and improve lipid metabolism, effectively reducing both cholesterol and triglyceride levels. Moreover, FOS may help improve hypertension and atherosclerosis associated with elevated blood lipids.
2. Regulates Blood Lipids
Fructooligosaccharides exert a supportive effect on lowering blood lipid levels—primarily by modulating gut microbiota composition. Additionally, FOS promote growth and development and help prevent osteoporosis. They also stimulate the natural synthesis of B-complex vitamins and folate, thereby enhancing metabolic activity, boosting immunity and disease resistance, and preventing or improving skin disorders caused by accumulation of endogenous toxins.
3. Enhances Nutrient Absorption
Current evidence suggests that FOS enhance calcium absorption through two primary mechanisms: first, by upregulating intestinal mucosal calbindin (calcium-binding protein); second, by undergoing fermentation in the colon into L-lactic acid, which increases the solubility of calcium compounds and thus improves calcium bioavailability. Furthermore, FOS provide minimal usable energy for humans, as they cannot be directly absorbed but instead serve as substrates for beneficial colonic bacteria—making them potentially useful for weight management. In addition, FOS improve gut microbiota balance by selectively stimulating the proliferation of beneficial bacteria in the colon, thereby optimizing the intestinal microecological environment.
The above outlines the key functions and health benefits of fructooligosaccharides. We hope this information is helpful to you.
