Seaweed-Based Feed - Market Share Analysis, Industry Trends & Statistics, Growth Forecasts (2026-2031)

The seaweed-based feed market was valued at USD 1.38 billion in 2025 and is projected to grow from USD 1.51 billion in 2026 to USD 2.17 billion by 2031, registering a CAGR of 7.52% during the forecast period (2026-2031). This report is Segmented by Application (Aquaculture, Livestock, and More), by Species (Brown Seaweed, Red Seaweed, and More), by Form (Powder, Pellets, Liquid Extract, and Flakes), by Distribution Channel (Direct (B2B) and Indirect), and by Geography (North America, South America, Europe, Asia-Pacific, Middle East, and Africa). The Market Forecasts are Provided in Terms of Value (USD).

Global Seaweed-Based Feed Market Trends and Insights

Rising Demand for Sustainable Aquaculture Feed

Farmed fish and shrimp producers are replacing fishmeal and soy concentrate with seaweed-based ingredients to meet sustainability goals and improve feed-conversion ratios. In 2026, BioMar Group A/S launched functional aquafeed for hatcheries, highlighting seaweed derivatives as sustainable solutions. India’s seaweed production tripled to 74,083 metric tons in 2024 under the Pradhan Mantri Matsya Sampada Yojana, reducing costs and strengthening Asia-Pacific’s role in kelp-based feed supply. Scientific validation, product innovation, and increased supply are driving seaweed’s role in sustainable aquaculture nutrition.

Regulatory Curbs on Antibiotic Growth Promoters

The European Union's ban on prophylactic antibiotics and the United States Food and Drug Administration's guidance have compelled feed mills to adopt natural immunity enhancers as part of their production processes. In response to these regulatory changes, Cargill has incorporated Ascophyllum nodosum, a type of seaweed, into broiler starter feeds to comply with antibiotic-free labeling requirements and support animal health. In 2024, Canada approved the use of algal omega-3 oil in aquafeeds, marking a significant step toward the acceptance of marine bioactives in animal nutrition. This approval reflects a growing openness among regulatory agencies to innovative, sustainable feed ingredients. Additionally, traceability standards under the International Organization for Standardization (ISO) 22,000 now favor vertically integrated ocean farming operations, promoting enhanced transparency and accountability in the supply chain.

High Processing Cost Versus Conventional Additives

Freeze-drying Asparagopsis costs USD 8-12 per kilogram, far higher than USD 0.50-1.50 for standard mineral premixes, creating a price premium of at least 600%. Cascadia Seaweed raised USD 2.96 million in 2024 for a British Columbia biorefinery but requires over 10,000 metric tons of annual output to match soy-protein concentrate costs. Fremantle Seaweed an aquaculture farm based in western Australia secured USD 1.44 million in 2025 for a 3,000-hectare Asparagopsis farm, but its product remains less cost-effective than 3-nitrooxypropanol inhibitors, limiting adoption among cost-sensitive beef producers. In Brazil and Argentina, sun-drying necessitated by the lack of energy subsidies degrades heat-sensitive polysaccharides by up to 40%, reducing functional value and forcing price discounts. These cost barriers keep seaweed additives classified as niche, premium inputs, slowing the growth of the seaweed-based feed market.

Other drivers and restraints analyzed in the detailed report include:

• Functional Benefits of Seaweed Bio-actives
• Expansion of Commercial Ocean Farming Capacity
• Supply Variability Due to Seasonal Harvests

Segment Analysis

Aquaculture accounted for 46% of the seaweed-based feed market share in 2025, reflecting decades of established inclusion in the diets of salmon, trout, and shrimp. Livestock is anticipated to capture a larger share of the seaweed-based feed market, driven by 12.3% CAGR growth during 2026-2031, as dairy and beef operators adopt red seaweed extracts to meet climate levies. Poultry and swine remain minor users because regulators require more digestibility data, although small-scale trials show immune benefits. Pet food formulators are beginning to blend algal omega-3 oils to differentiate premium lines launched in 2026. Recirculating aquaculture system operators in Europe report improved pellet water stability when 1% kelp meal is added.

Rapid livestock uptake rests on secured offtake deals. Sea Forest signed agreements covering 123,000 cattle in 2025 and partnered with Orffa for European Union dairy channels. Symbrosia expects its Hawaii refinery to service 1.4 million head annually from 2027. Aquaculture trials have expanded to Pacific white shrimp, showing 30% growth gains at 2% Asparagopsis inclusion. Pet brands test microalgae blends for coat shine and joint health yet must formulate around iodine ceilings. Poultry integrators could unlock volume once multi-site studies validate 0.5-1% kelp inclusion across broiler breeds.

Brown seaweed retained 42% of revenue in 2025 because Laminaria supply chains in China and Japan already feed regional mills. Red seaweed is the fastest-growing segment, with a 13.1% CAGR through 2031, and is forecast to sharply expand the seaweed-based feed market once Asparagopsis volumes scale. Green seaweed holds a smaller slice but brings high protein concentrations that appeal to land-based aquaculture. Micro-algae blends attract premium niches in pet food and specialty fish diets at above USD 15 per kilogram.

Efficacy data underpins red seaweed momentum. Mexico’s 2025 authorization of Brominata established a regulatory beachhead. CH4 Global’s EcoPark came online in 2025 to serve tens of thousands of cattle daily. Brown seaweed maintains its aquaculture dominance through BioMar’s POWER H2O feed launched in 2025. Marinova’s 2024 expansion tripled fucoidan output to meet rising demand for immunomodulators. Green Ulva inclusion continued to improve quail feed conversion in 2024 trials, hinting at broader monogastric applications.

Complete Report Scope:

• Application
  • Aquaculture
  • Livestock
  • Poultry
  • Pet Food
• Species
  • Brown seaweed
  • Red seaweed
  • Green seaweed
  • Micro-algae blends
• Form
  • Powder
  • Pellets
  • Liquid extract
  • Flakes
• Distribution Channel
  • Direct (B2B)
  • Indirect
• Geography
  • North America
    • United States
    • Canada
    • Mexico
    • Rest of North America
  • South America
    • Brazil
    • Argentina
    • Rest of South America
  • Europe
    • Germany
    • United Kingdom
    • France
    • Italy
    • Spain
    • Russia
    • Rest of Europe
  • Asia-Pacific
    • China
    • Japan
    • India
    • South Korea
    • Australia and New Zealand
    • Rest of Asia-Pacific
  • Middle East
    • Saudi Arabia
    • United Arab Emirates
    • Rest of Middle East
  • Africa
    • South Africa
    • Kenya
    • Rest of Africa

Geography Analysis

Asia-Pacific retained the largest 45% market share in 2025, reflecting deep Laminaria supply chains in China and expanding kelp farms in India. Producers in Japan and South Korea leverage vertically integrated models that cut logistics costs and speed batch-level traceability. South America is the fastest region, advancing at a 10.5% CAGR over 2026-2031 as Chilean salmon companies adopt integrated macroalgae systems and Brazilian beef exporters monetize blue-carbon credits. These quantitative trends show that the leading, fastest territories drive overall market growth momentum.

Europe maintains robust demand as Norwegian brown-seaweed biorefineries reach commercial scale and European Union regulations favor natural feed additives over antibiotics. North America benefits from Ascophyllum harvests in the North Atlantic and early adoption of Asparagopsis supplements by large dairy integrators. The Middle East shows steady uptake through imported powders blended into poultry rations, while Africa relies on Asian extracts but explores coastal farming pilots. Although these areas trail the leaders in absolute revenue, technology transfer and regulatory alignment continue to widen their addressable opportunity.

Regional investments are anticipated to broaden the seaweed-based feed market size through 2031. Asia-Pacific governments fund nurseries, dryers and bioreactors that lower entry barriers for new growers, while Australian hubs scale rope-grown Asparagopsis for methane reduction. Chile, Norway and Canada refine biorefinery designs that squeeze more value from each kilogram of biomass, improving cost competitiveness. As traceable supply networks mature, all regions are positioned to raise inclusion rates across aquaculture, livestock and pet-food applications, reinforcing the long-term growth trajectory.

List of Companies Covered in this Report:

• Cargill, Incorporated
• Olmix SA
• BioMar Group A/S
• Acadian Seaplants Limited
• Alltech, Inc.
• Ocean Harvest Technology Group Limited
• DSM-Firmenich AG
• CP Kelco U.S., Inc.
• Algaia SA
• Seakura Ltd.
• Blue Ocean Barns, Inc.
• CH4 Global, Inc.
• Sea Forest Ltd.
• Symbrosia Inc.
• FutureFeed Pty Ltd.

Additional Benefits:

• The market estimate (ME) sheet in Excel format
• 3 months of analyst support