The US seaweed market size reached USD 2,223.77 Million in 2024. Looking forward, IMARC Group expects the market to reach USD 4,531.26 Million by 2033, exhibiting a growth rate (CAGR) of 8.23% during 2025-2033. The market is driven by increasing incorporation of seaweed in livestock feed to promote environmental sustainability and improve agricultural efficiency. Functional foods and nutraceuticals utilizing seaweed extracts are meeting consumer demand for clean, nutrient-rich dietary options. Expanding use of seaweed in organic agriculture, biostimulants, and eco-friendly industrial processes is further augmenting the US seaweed market share.
Report Attribute
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Key Statistics
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Base Year
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2024
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Forecast Years
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2025-2033
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Historical Years
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2019-2024
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Market Size in 2024 | USD 2,223.77 Million |
Market Forecast in 2033 | USD 4,531.26 Million |
Market Growth Rate 2025-2033 | 8.23% |
Expanding Applications in Livestock Feed
The integration of seaweed into livestock feed formulations has gained significant momentum in the United States. Producers and agricultural stakeholders are prioritizing sustainable solutions that address environmental challenges linked to animal husbandry. Specific seaweed species are being evaluated for their potential to reduce methane emissions in ruminants while enhancing nutritional profiles. Feed innovators are working closely with agricultural cooperatives and sustainability initiatives to develop scalable supply chains for red and brown seaweed variants suitable for large-scale deployment in the feed sector. Research institutions continue to collaborate with feed manufacturers to optimize formulations that balance digestibility, nutrient absorption, and environmental benefits. The emphasis on sustainable agriculture is creating tangible pathways for the increased cultivation and processing of native and cultivated seaweed species. Partnerships between aquaculture operators and agribusiness companies are emerging to secure reliable inputs for future demand cycles. A recent study confirms that seaweed farming can sequester carbon in ocean sediments at rates comparable to mangroves and seagrasses, positioning it as a major Blue Carbon solution. Conducted across 20 farms worldwide, the research suggests that scaling seaweed farming could remove up to 140 million tons of CO₂ annually by 2050. Additionally, regulatory discussions regarding the formal approval of specific seaweed-derived feed ingredients are gaining traction, providing a framework for growth. Market participants recognize the long-term potential of these feed additives as part of integrated sustainability strategies within livestock farming, firmly establishing a new commercial opportunity. This alignment of agricultural innovation and environmental stewardship is a foundational driver for US seaweed market growth.
Sustainable Agriculture and Industrial Uses
Beyond food and feed, seaweed plays an increasingly vital role in sustainable agriculture and industrial production processes across the United States. Seaweed-derived extracts are widely valued for their ability to support soil vitality, enhance nutrient absorption in crops, and contribute to environmentally conscious farming practices. Agricultural producers are incorporating these extracts into fertilizer regimes, capitalizing on bioactive properties that stimulate plant growth and improve resilience. Simultaneously, seaweed-based biostimulants are becoming integral to organic and regenerative farming frameworks, further advancing ecological goals in mainstream agricultural operations. The industrial sector is also utilizing seaweed-derived compounds in product formulations for personal care, cosmetics, and packaging innovations. These applications support circular economy strategies by providing biodegradable alternatives to synthetic materials and contributing to resource-efficient manufacturing. Emerging partnerships between aquaculture farms, agricultural cooperatives, and industrial processors highlight a dynamic shift toward localized supply chains for marine-based ingredients. This ecosystem-oriented approach strengthens regional production systems and minimizes transportation-related environmental impacts. Regulatory engagement and academic research continue to bolster market pathways, encouraging investment in scalable cultivation technologies. The U.S. Department of Energy (DOE) has launched the HAEJO (Harnessing Autonomy for Energy Joint Ventures Offshore) program, a USD 25 million initiative to develop deep-water seaweed farming for energy and industrial markets. The program leverages the U.S.’s vast ocean territory and partners with South Korea to advance seaweed cultivation technologies. Key goals include cutting farming costs by 75%, boosting domestic production 1,000-fold, and supporting energy-focused markets. As these applications diversify and expand, seaweed’s role as a sustainable input solidifies its importance within key production ecosystems across industries in the United States.
IMARC Group provides an analysis of the key trends in each segment of the market, along with forecasts at the country and regional levels for 2025-2033. Our report has categorized the market based on environment, product, and application.
Environment Insights:
The report has provided a detailed breakup and analysis of the market based on the environment. This includes aquaculture and wild harvest.
Product Insights:
The report has provided a detailed breakup and analysis of the market based on the product. This includes red, brown, and green.
Application Insights:
The report has provided a detailed breakup and analysis of the market based on the application. This includes processed foods, direct human consumption, hydrocolloids, fertilizers, animal feed additives, and others.
Regional Insights:
The report has also provided a comprehensive analysis of all major regional markets. This includes Northeast, Midwest, South, and West.
The market research report has also provided a comprehensive analysis of the competitive landscape. Competitive analysis such as market structure, key player positioning, top winning strategies, competitive dashboard, and company evaluation quadrant has been covered in the report. Also, detailed profiles of all major companies have been provided.
Report Features | Details |
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Base Year of the Analysis | 2024 |
Historical Period | 2019-2024 |
Forecast Period | 2025-2033 |
Units | Million USD |
Scope of the Report |
Exploration of Historical Trends and Market Outlook, Industry Catalysts and Challenges, Segment-Wise Historical and Future Market Assessment:
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Environments Covered | Aquaculture, Wild Harvest |
Products Covered | Red, Brown, Green |
Applications Covered | Processed Foods, Direct Human Consumption, Hydrocolloids, Fertilizers, Animal Feed Additives, Others |
Regions Covered | Northeast, Midwest, South, West |
Customization Scope | 10% Free Customization |
Post-Sale Analyst Support | 10-12 Weeks |
Delivery Format | PDF and Excel through Email (We can also provide the editable version of the report in PPT/Word format on special request) |
Key Questions Answered in This Report:
Key Benefits for Stakeholders: