The short answer
Dried seaweed and seaweed snacks are fast-growing U.S. imports. FDA treats them as foods, and buyers focus on heavy metals, iodine content and allergen labeling.
What exporters should watch for
🏭 Registration
Seaweed processors, snack makers and packers register with FDA and name a U.S. Agent. Each shipment needs Prior Notice and the U.S. importer needs an FSVP.
⚗️ Heavy metals and iodine
Some seaweeds, especially hijiki and kelp, can contain high levels of inorganic arsenic or iodine. U.S. buyers ask for lot test results, and some brands add serving advice for kelp products.
🦐 Allergens
Seaweed is often harvested and processed near shellfish and fish. Seasoned snacks may contain sesame, soy and wheat, all of which must be declared.
🏷️ Labels
Seaweed snacks need U.S. Nutrition Facts with sodium and iodine where declared, ingredient lists in English, and net weight in ounces and grams.
Common reasons shipments are stopped
- Heavy metals above buyer limits
- Undeclared sesame, soy or shellfish
- Foreign-language labels
- Unregistered facility
- No Prior Notice
🏢 No U.S. company to act as FSVP importer? Orionex offers an FSVP importer service for food and dietary supplements — from $80 per shipment, with the program and Qualified Individual included.
What you need to register — and what it costs
| Product type | FDA requirement | Orionex price |
|---|---|---|
| Food, beverages, supplements | Food facility registration + U.S. Agent, renewed every 2 years; Prior Notice for each shipment | $300/year or $450 for 2 years |
| Cosmetics | MoCRA facility registration (every 2 years) + product listing + U.S. Agent | $300/year or $450 for 2 years; listing $150/product |
| Medical devices | Establishment registration (yearly, FDA fee paid separately) + device listing; 510(k) for many Class II devices | $550/year; listing $50/device |
| Drugs (incl. OTC) | Drug establishment registration (yearly) + NDC labeler code + drug listing | $550/year; listing $350/product |
Every Orionex registration includes the U.S. Agent service, D-U-N-S number set-up where needed and a Certificate of Registration. All prices →
Tell us your product — we’ll confirm what FDA requires, in writing, by email.
Frequently asked questions
Is seaweed regulated as seafood by FDA?
No. Seaweed is a plant food, so seafood HACCP does not apply. Processors follow FDA’s preventive controls rules instead and must register with FDA.
Do seaweed snacks need FDA registration?
Yes. Facilities that make, pack or store seaweed products for the U.S. must register with FDA, name a U.S. Agent and file Prior Notice for each shipment.
Does FDA limit iodine or arsenic in seaweed?
FDA has no specific limit for seaweed, but it can act against food with harmful levels. Buyers usually set their own limits and ask for test results.
Sources
Checked against FDA and other official sources on November 11, 2026. This guide is general information, not legal advice.