- Laminariaceae
- Whole frond
- North Atlantic · Brittany · Ireland
- Dried and milled
Kelp
Laminaria digitata
Select sizeThe plant
Laminaria digitata is a large brown seaweed with finger-like fronds growing in cool seas.
What's in it
Iodine is a mineral used by the thyroid gland. Alginates are gel-forming carbohydrates that help give brown seaweed its texture.
Iodine
Highly concentrated — kelp accumulates it thousands of times above seawater levels.
Alginates
Structural polysaccharides. Widely used commercially as thickeners.
Fucoidan
A sulphated polysaccharide characteristic of brown algae.
Minerals
Potassium, magnesium, calcium and iron.
How it works
Thyroid nutrition: The thyroid is a small gland in the neck. It uses iodine to make hormones that help regulate how the body uses energy. Sea-vegetable variety: Kelp contributes a distinctive marine ingredient to food traditions. The amount of iodine in the product determines how it fits into a diet.
In the tradition
Used in coastal food traditions and modern sea-vegetable supplements.
Its divided fronds give Laminaria digitata its finger-like appearance.
- 1Use ¼–½ tsp dried kelp daily, stirred into soups, broths or sprinkled over food.
- 2Do not exceed this without advice — kelp is very high in iodine and excess affects thyroid function.
- 3Salty and savoury.
- Iodine can be excessive.
- Check thyroid disease, thyroid medicines, pregnancy and breastfeeding; follow tested serving guidance.
A food supplement, not a substitute for a varied diet. Speak to your doctor before use if you are pregnant, breastfeeding or taking medication.
Common questions
How do I prepare kelp?
Use ¼–½ tsp dried kelp daily, stirred into soups, broths or sprinkled over food. Full directions are in the How to use panel above. See also: How to use sea moss gel, powder and capsules.
What is kelp?
Kelp (Laminaria digitata) belongs to the Laminariaceae family; the whole frond is used. Origin: North Atlantic, Brittany, Ireland. A sea vegetable with a naturally savoury character and iodine-containing heritage.
How should I store dried kelp?
Keep it in an airtight container in a cool, dry place away from sunlight and moisture. Dried herbs are at their best for around a year.
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