Mannan Oligosaccharides

gluten free mannan oligosaccharides

Mannan Oligosaccharides (MOS) is a complex polysaccharides isolated from the yeast Saccharomyces cerevisiae. MOS belongs to probiotics, indigestible polysaccharides that stimulate growth of beneficial microorganisms in the intestinal lumen and optimize immune responses.


MOS, a product derived from the cell wall of the brewer’s yeast, Saccharomyces cerevisiae. MOS is not only a prebiotic but also an immune polysaccharide—a molecule possessing one of the strongest stimulatory effects on mucosal immune responses. Another unique property of MOS includes its inhibitory effects on the attachment of pathogenic bacteria to the intestinal lining, restoration of intestinal villi and stimulation of digestive enzymes.


Potential side effects:

Potential drug interactions:

Relative contraindications:


Contents: 120 VCaps

Dosage information:

The starting dose of MOS should be 500 mg 2 times a day. If this dose is tolerated, it can eventually escalate to 1-3000 mg 2 times a day. Those exceeding the recommended doses must do so under the supervision of their physician due to the increased risk of potential side effects.


In this video, Dr. Shikhman explains the difference between GOS and our other prebiotic MOS, what conditions are used for each, and proper dosing.



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Selected references:

Grieshop CM, Flickinger EA, Bruce KJ, Patil AR, Czarnecki-Maulden GL, Fahey GC Jr. Gastrointestinal and immunological responses of senior dogs to chicory and mannan-oligosaccharides. Arch Anim Nutr. 2004 Dec;58(6):483-93.


Radman R, Bland EJ, Sangworachat N, Bucke C, Keshavarz T. Effects of oligosaccharides and polysaccharides on the generation of reactive oxygen species in different biological systems. Biotechnol Appl Biochem. 2006 Jun;44(Pt 3):129-33.



These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

All information contained on this website is intended for informational and educational purposes only, and is not intended nor suited to be a replacement or substitute for professional medical treatment or for professional medical advice relative to a specific medical question or condition.

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