The global mannan-oligosaccharides (MOS) market surpassed USD 465.0 million in 2025 and is projected to reach USD 498.0 million in 2026. By 2036, the market is expected to expand to USD 1,095.0 million, registering a CAGR of 8.9% during the forecast period. Growth is being driven by increasing use of functional feed additives, rising concerns over livestock disease outbreaks, and stricter regulations on antibiotic usage in animal nutrition.

MOS are yeast-derived carbohydrate compounds widely used in poultry, swine, aquaculture, and dairy feed to improve gut health, strengthen immunity, and reduce pathogen pressure. Commercial livestock operators are increasingly adopting MOS to improve feed conversion ratios, maintain animal productivity, and support healthier digestive systems without relying on antibiotics.

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Rising Demand for Gut-Health Feed Additives

Feed producers are increasingly using MOS because they help prevent harmful bacteria from colonizing the digestive tract while supporting immune function and nutrient absorption.

• Growing antibiotic restrictions: Regulations limiting antibiotic use in livestock production are encouraging producers to adopt natural feed additives such as MOS.

• Higher disease prevention needs: Poultry and swine operators are investing in gut-health solutions to reduce mortality rates and maintain production efficiency.

• Improved feed conversion: MOS helps improve digestion and nutrient uptake, allowing producers to achieve better weight gain and lower feed costs.

Yeast Cell Wall Sources Remain Dominant

Yeast cell wall-derived MOS is expected to account for 69.0% of total market demand in 2026, making it the leading source segment.

• Strong biological performance: Yeast-derived MOS offers better pathogen-binding properties and more consistent digestive support compared to synthetic alternatives.

• Reliable commercial availability: Large-scale fermentation facilities provide stable supply for industrial feed manufacturers.

• Growing investment in extraction technologies: Companies are expanding enzymatic separation and refining capabilities to improve product quality and concentration levels.

Animal Feed Holds the Largest Application Share

Animal feed is projected to account for 58.0% of total market consumption in 2026 due to growing demand from poultry, swine, and aquaculture producers.

• High poultry sector demand: Poultry producers are major consumers of MOS because they need to improve immunity and feed efficiency in high-density farming systems.

• Expansion in aquaculture: Fish and shrimp farming operations are increasingly adopting MOS to improve digestive health and reduce disease risks.

• Support for dairy and swine production: Dairy and pig farmers are using MOS to reduce digestive stress and improve animal performance.

Specialty Distributors Lead Sales Channels

Specialty feed and pharmaceutical distributors are expected to account for 42.0% of total market demand in 2026.

• Technical support services: Distributors provide formulation guidance, dosage recommendations, and veterinary expertise to customers.

• Efficient market access: Regional distribution networks help MOS suppliers reach fragmented livestock markets more effectively.

• Stronger supply relationships: Buyers increasingly prefer long-term procurement agreements to secure stable pricing and continuous product availability.

Supply Consolidation Influences Market Dynamics

The MOS market remains influenced by consolidation among major yeast fermentation companies.

• High production costs: Manufacturing MOS requires advanced fermentation and extraction infrastructure, creating barriers for smaller producers.

• Limited supplier base: A small number of global companies control large-scale MOS production capacity.

• Rising focus on long-term contracts: Feed manufacturers are increasingly partnering with integrated yeast suppliers to reduce sourcing risks.

Regional Highlights

• India is projected to register the fastest growth at 10.1% CAGR through 2036, supported by poultry modernization and expanding feed production.

• China is expected to grow at 9.6% CAGR because of its large livestock base and increasing focus on disease prevention.

• The United States is forecast to expand at 9.0% CAGR as commercial farms invest more in antibiotic-free nutrition programs.

Competitive Landscape

Leading companies are focusing on fermentation expansion, strategic partnerships, and acquisitions to strengthen their position in the MOS market.

Key players operating in the market include:

• Lesaffre
• ADM
• Alltech
• Biorigin
• Kemin Industries

Analyst Outlook

Future growth in the MOS market will be supported by increasing demand for antibiotic-free livestock production, stronger focus on disease prevention, and rising use of functional feed additives. Companies that invest in fermentation capacity, traceability, and advanced extraction technologies are expected to gain a competitive advantage over the next decade.