Algae Low in Vitamin B1 (Thiamin) (21st - 40th) (per 100 g edible portion)
- Wakame (cut and dried)
- Hosome-konbu (dried)
- Hitoegusa (tsukudani)
- Sea lettuce (dried)
- Wakame (raw)
- Tengusa (dried)
- Arame (steamed and dried)
- Enaga-oni-konbu (dried)
- Kizami-konbu
- Fu-nori (dried)
- Naga-konbu (dried)
- Gagome-konbu (dried)
- Hitoegusa (dried)
- Kezuri-konbu
- Hijiki (boiled and dried)
- Kawa-nori (dried)
- Wakame, Dried product (dried)
- Mitsuishi-konbu (dried)
- Ma-konbu (dried)
- Matsumo (dried)