Seaweed Market to Reach $9,339.2 Million by 2027 in the short term and $18,111.5 Million by 2034 Globally, at 9.5% CAGR: Allied Market Research

WILMINGTON, Del., Oct. 9, 2025 — Allied Market Research published a report titled “Seaweed Market – Global Opportunity Analysis and Industry Forecast, 2025-2034“, which valued the market at $7,476.0 million in 2024. The report projects a compound annual growth rate (CAGR) of 9.5% from 2025 to 2034, reaching an estimated $18,111.5 million by 2034. In the near term, the market is expected to reach about $9,339.2 million by 2027.

Demand for seaweed is rising across food, pharmaceuticals, cosmetics, agriculture and biofuels driven by its nutritional and bioactive properties. Seaweed derivatives such as agar, alginate and carrageenan are widely used as thickening, gelling and emulsifying agents in food and industrial applications. Asia-Pacific leads production and consumption, while North America and Europe are seeing growing demand due to health-conscious consumers and sustainable farming initiatives.

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Market Introduction

The seaweed market comprises commercial trade and use of red, brown and green marine algae species. Seaweeds are valued for minerals (iodine, calcium, iron), vitamins and bioactive compounds. Traditionally consumed in Asia, seaweed is increasingly incorporated into Western diets and product lines as plant-based, functional and sustainable ingredients.

Applications include direct human consumption (food and snacks), hydrocolloids for food processing, pharmaceutical and nutraceutical ingredients, cosmetics (anti-inflammatory and antioxidant extracts), agricultural fertilizers and animal feed additives. Seaweed farming has also attracted interest as a low-impact aquaculture practice and as a feedstock for emerging biofuel and biodegradable-materials applications.

Report Overview

The report segments the market by product type (red, brown, green), application (food, medicines, chemical & fertilizers, animal feed additives, building materials, energy sources) and region (North America, Europe, Asia-Pacific, LAMEA). Key highlights include:

• By product: Red seaweed dominated the market in 2024 and is expected to retain its lead during the forecast period.
• By application: Food represented the largest application segment in 2024 and is expected to continue leading.

Report coverage & summary

Factors Affecting Market Growth

Major growth drivers include rising demand for natural food additives and hydrocolloids, increased utilization in pharmaceuticals and nutraceuticals, and growth of organic farming with demand for biofertilizers. Technological advances in cultivation and processing, plus government support and private investment, are improving yields, quality and supply-chain efficiency.

Environmental and sustainability trends are creating opportunities for seaweed-derived alternatives to plastics, as biofertilizers and as feedstock for biofuels. Growing consumer interest in clean-label and plant-based products especially in North America and Europe is further supporting demand.

Challenges & Industry Responses

Key challenges include price volatility, fragmented and inconsistent regulatory standards, supply-chain limitations due to perishability, risks from overharvesting, and impacts of climate change on growth patterns. Industry solutions include the development of controlled aquaculture systems, improved drying and preservation technologies, adoption of traceability and quality-control standards, and collaboration across stakeholders (governments, producers and processors) to promote sustainable expansion.

Regional Insights

Asia-Pacific holds the largest share due to traditional consumption and large-scale aquaculture in China, Japan, South Korea and Indonesia. Europe is expanding rapidly driven by product innovation and sustainability projects; the EU supports aquaculture and R&D to build domestic capacity. North America (U.S., Canada) is seeing growing consumption and nascent domestic cultivation projects (e.g., British Columbia, Maine). LAMEA contributes through export-oriented production (notably Chile for carrageenan). The Middle East & Africa market is emerging, with potential in water-efficient agriculture and sustainable inputs.

Key Players & Strategic Developments

Key industry participants include Annie Chun’s, Brandt, Cargill, COMPO EXPERT, GimMe Health Foods, Groupe Roullier, Irish Seaweeds, Maine Coast Sea Vegetables, Qingdao Bright Moon Seaweed Group, Qingdao Gather Great Ocean Algae Industry Group and others.

• May 2025 — Atlantic Sea Farms reported collecting over 1.3 million pounds of regenerative seaweed via partner farmers, supplying ingredients for seaweed-infused foods.
• April 2025 — Seagriculture USA and Seagriculture Asia-Pacific merged conferences to create the global “Seagriculture World” forum for industry collaboration and scaling mariculture.
• Feb 2025 — China accounted for ~70% of commercial seaweed production in 2024 (~24 million tons), scaling extraction and high-value compound production with machine-learning farm oversight and satellite monitoring.
• May 2023 — Oceanfarmr and Coast 4C entered a strategic agreement to develop mobile and sensor-based solutions to support small-scale growers in Southeast Asia.

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About Allied Market Research

Allied Market Research (AMR) is a full-service market research and business consulting arm of Allied Analytics LLP based in Wilmington, Delaware. AMR provides market intelligence, business planning and consulting support to SMEs and start-ups, along with reports, data and advisory services.

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Source: Allied Market Research