It may support gut health, but is it essential for healthy dogs and cats?
Mannan oligosaccharide - also called mannans or, more commonly, MOS - is a naturally occurring component of yeast cell walls. MOS has been researched extensively for use in livestock nutrition and more recently for humans and pets, mainly in Europe and Asia. While most of the nutrition-related discovery has occurred in the past few years, references on mannans appear in literature dating back a half century.
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