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Sea Tangle (昆布) | Food Art Store

Sea Tangle

昆布 · Kūn Bù
Saccharina japonica (J.E.Areschoug) C.E.Lane et al.

The classic mineral-rich kelp (Kun Bu) — Sea Tangle softens hardness, dissipates nodules, drains water, and delivers the deep, iodine-rich nourishment of the sea.

Taste & Nature
Salty & Cold
Part Used
Mature Frond (Thallus)
Channels Entered
Liver, Stomach & Kidney
TCM Category
Phlegm-Resolving
Family
Laminariaceae
Sea Tangle

What Is Sea Tangle?

Sea Tangle (Kun Bu, 昆布) is the mature, broad frond of the kelp plant — a deep-brown sea vegetable harvested from cool coastal waters. It is one of the most familiar and treasured seaweeds of East Asian cuisine, lending a rich, savoury depth and a wealth of minerals to soups and broths.

Salty and cold in nature, Sea Tangle enters the Liver, Stomach, and Kidney channels. In Traditional Chinese Medicine it is a classic herb for softening hardness and dissipating nodules — historically the foremost remedy for goitre and phlegm-related lumps — as well as for draining water and reducing swelling. Exceptionally rich in iodine, alginate, fucoidan, and trace minerals, Sea Tangle nourishes thyroid and metabolic health and is a cornerstone of mineral-rich confinement and recovery soups.

History & Origin

Sea Tangle, or Kun Bu, has been one of the most important medicinal seaweeds in Chinese medicine for over a thousand years, long before the cause of goitre was understood.

Ancient Goitre Remedy
Centuries before iodine was identified, Chinese physicians used Kun Bu (Sea Tangle) to treat goitre — an early, empirical recognition of seaweed’s iodine-rich nature.
Classical Materia Medica
Recorded as a salty-cold herb that softens hardness, dissipates nodules, and drains water — used for goitre, scrofula, swelling, and phlegm accumulation.
Coastal Cuisine
Sea Tangle became a daily staple of East Asian cooking and a treasured ingredient in nourishing, mineral-rich broths and confinement soups.
Modern Era
Sea Tangle is confirmed as one of the richest natural sources of iodine, with alginate and fucoidan studied for metabolic, cardiovascular, and detoxifying support.

Traditional Uses

Softens Hardness & Dissipates Nodules

The foremost action — softens hardness and dissipates phlegm nodules, the classic TCM remedy for goitre and lumps from phlegm accumulation.

Drains Water & Reduces Swelling

Promotes urination and drains excess water to relieve oedema and water retention.

Cools Heat

Its salty-cold nature clears heat and helps balance a warm constitution.

Mineral Nourishment

An exceptional natural source of iodine and trace minerals supporting thyroid and metabolic health.

Health Benefits

  • 🌊
    Iodine & Mineral RichOne of the richest natural sources of iodine and trace minerals, supporting thyroid and metabolic function.
  • 🧊
    Softens & Dissipates NodulesThe classic salty-cold action that softens hardness and resolves phlegm accumulation.
  • 💧
    Drains WaterPromotes urination and helps reduce swelling and water retention.
  • 🫀
    Cardiovascular SupportAlginate and fucoidan studied for supporting healthy circulation and cholesterol balance.
  • 🌿
    Dietary FibreRich in soluble seaweed fibre that supports digestion and gut health.

Soups Featuring Sea Tangle

Sea Tangle is a key ingredient in this Food Art no-cook herbal soup, thoughtfully formulated to deliver its nourishing benefits in a convenient, ready-to-brew format.

Confinement 30 Young

Confinement 30 Young

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The information on this page is for educational and informational purposes only and is not intended as medical advice. Please consult a qualified healthcare practitioner before using any herbal products.

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