Why source from Japan
Domestic Japanese hijiki processing (multiple-water leaching, dehydration) reduces arsenic to levels below most international guidance; export-grade supply chain.
Key spec
Calcium 1,400 mg/100g dry; dietary fibre ~50%; iron 55 mg/100g; inorganic arsenic disclosure required.
Typical end-product
Retail hijiki for Japanese-restaurant export, nimono ready-meals, calcium-fortified functional foods.
At a glance
- Suppliers listed
- 1 supplier
- Typical MOQ
- 10–50 kg dried; 5–25 kg processed cuts
- Typical lead time
- 4–8 weeks
- Regions of origin
- Mie, Nagasaki, Oita
- Category
- Marine functional ingredients
- Harvest season
- March – May
- Japan regulatory status
- Food product; iodine and arsenic disclosure per JAS; processing-water leaching reduces arsenic substantially
- Japanese name
- ひじき
- Romaji
- Hijiki
About this ingredient
Brown seaweed (Sargassum fusiforme) traditionally consumed in Japan as a side dish (nimono, salad) and increasingly under regulatory scrutiny in some export markets due to inorganic-arsenic content. Mie, Nagasaki, and Oita are the principal commercial harvest regions, with imported Korean and Chinese supply also feeding the Japanese market. Calcium and dietary fibre profile drive nutrition positioning, but importers must navigate destination-market arsenic guidance — UK FSA advises against hijiki consumption, while Japan and most EU member states permit it with labelling.
Regulatory status
| Japan | Food product; iodine and arsenic disclosure per JAS; processing-water leaching reduces arsenic substantially |
|---|---|
| EU | Food import; UK FSA advises against consumption; other EU members permit with arsenic labelling |
| United States | FDA does not restrict; arsenic content advisory for chronic high consumption |
| China | GACC food facility registration; arsenic compliance critical |
Looking for alternatives?
Common reasons buyers swap to a different ingredient — and what we'd suggest based on this ingredient's profile.
Vegan / plant-based alternatives
Hijiki is animal-derived. If you need a non-animal source with similar functions, consider:
Sansho Pepper
山椒
Zanthoxylum piperitum source; INCI Zanthoxylum Piperitum Fruit Extract; MOQ from 1–10 kg (dried peppercorn); 100 g – 5 kg (powder).
Plant-based· shares 2 categories
Wasabi Powder
山葵粉末
Wasabia japonica (Eutrema japonicum) source; INCI Wasabia Japonica Root Powder; MOQ from 1–10 kg (powder); 100 kg+ (bulk paste).
Plant-based· shares 2 categories
Fucoidan
フコイダン
INCI Fucoidan (from various brown seaweeds); MOQ from 1–10 kg.
Plant-based· shares 2 categories
Easier China regulatory path
Hijiki faces a more restrictive regulatory pathway in China. These alternatives have a simpler status in that market:
Akamoku (Gulfweed Seaweed)
アカモク
Fucoxanthin 0.05-0.3% dry weight; soluble dietary fibre 30-40%; alginate 15-25%.
Simpler in China· shares 3 categories
Nigari (Bittern / Magnesium Chloride)
にがり
Magnesium chloride 60–95% (varies by source); pH 6.5–7.5; coagulation rate ideal 0.4–0.7% in soy milk for tofu.
Simpler in China· shares 3 categories
Kanten (Agar)
寒天
Gel strength 600–1,000 g/cm² (varies by grade); galactose-rich polysaccharide; ash content <5% for premium grades.
Simpler in China· shares 3 categories
When does it make sense to swap an ingredient? Read the swap guide →
Japanese suppliers
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Last updated: 2026-05-05