
Naruto Strait's tidal currents produce wakame with firmness and color no other origin matches; designated regional brand under Tokushima.
Iodine 100-300 mg/100g dry; alginate 25-35%; fucoxanthin 0.05-0.15%.
Premium retail wakame for export, miso-soup blend, fucoxanthin-positioned supplements.
Premium-grade wakame (Undaria pinnatifida) harvested in the Naruto Strait (between Tokushima and Awaji Island). The strong tidal currents in this strait produce wakame with thicker, firmer texture and brighter green color than other origins. Naruto Wakame is a designated regional brand under Tokushima's branding programme. The premium texture commands 2-3× the price of mainstream wakame in retail. Distinct from existing 'fucoidan' (which is the active component) and 'okinawa-mozuku-fucoidan'. Used in soup, salad, and as a feedstock for fucoxanthin / mineral-rich supplement extracts.
| 日本 | Food product; iodine-content disclosure under Japan food labelling rules |
|---|---|
| 欧盟 | Food import; iodine cap monitoring (EU recommends ≤600 µg/day) |
| 美国 | GRAS for food; FDA Prior Notice required |
| 中国 | GACC food facility registration; verify iodine compliance |