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Mineral · in-depth review

Seaweed-Derived Iodine

Seaweed-Derived Iodine

Seaweed iodine comes from brown algae, kelp, and kombu. It supplies feedstock for thyroxine in a food matrix. Iodine content varies greatly with species and sea area.

Also known askelp iodine
Related diseasesHypothyroidismGoitre
Related symptomsFatigue

Marked asPrimarySupporting

Primary

Supports thyroid-hormone synthesis

Brown algae, kelp, and kombu carry iodine in a food matrix; follicles still organify iodine into T4 and T3. Species and sea area can make content differ widely. People watching thyroxine feedstock most often match this food iodine from seaweed; kelp and kombu content can differ a great deal by sea area.

Supporting

Supports the developing brain and basal metabolism

Seaweed food iodine is likewise a structural element of the hormone. Early-childhood brain development and adult heat production both rely on follicles making iodine into T4 and T3. Coastal diets have more seaweed; inland diets without iodization more often show this feedstock gap, and inland diets without iodization more often expose a feedstock gap.

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Fatigue

Brown algae, kelp, and kombu carry iodine in a food matrix; follicles still organify iodine into T4 and T3. Species and sea area can make content differ widely. People watching thyroxine feedstock most often match this food iodine from seaweed; kelp and kombu content can differ a great deal by sea area. People who cannot get going by day and feel foggy in the afternoon more often notice stamina for tasks and mental freshness after several continuous weeks.

Hypothyroidism

Brown algae, kelp, and kombu carry iodine in a food matrix; follicles still organify iodine into T4 and T3. Species and sea area can make content differ widely. People watching thyroxine feedstock most often match this food iodine from seaweed; kelp and kombu content can differ a great deal by sea area. People who feel cold, especially tired on waking, and already track thyroid markers more often notice lab values and mental freshness after several continuous weeks.

Goitre

Brown algae, kelp, and kombu carry iodine in a food matrix; follicles still organify iodine into T4 and T3. Species and sea area can make content differ widely. People watching thyroxine feedstock most often match this food iodine from seaweed; kelp and kombu content can differ a great deal by sea area. People with fullness at the front of the neck whose iodine intake is in question more often notice neck feel and related labs after several continuous weeks.

With foodCan be taken with food
Best timeMorning or midday
SolubilityInsoluble, Water-dispersible

Iodine in seaweed and iodized salt varies widely; count total intake.

General wellness150 mcg/day for adults; 220 mcg/day in pregnancy; 290 mcg/day while breastfeeding
Specific needsTreatment of thyroid disease or deficiency is set by a doctor from lab tests. The adult upper limit is 1,100 mcg/day.

How oftenUse according to daily need; do not exceed the upper limit on your own long term.

Cautions

People with thyroid disease should not self-use high-iodine or seaweed products.

Both iodine excess and deficiency can affect thyroid function.

Interactions

  1. Thyroxine or antithyroid drugs (iodine load can disturb dosing)
  2. Amiodarone (already contains iodine)
Common side effects

· Stomach discomfort (high doses)

Rare but important

· Excess may trigger abnormal thyroid function.

Long-term dependenceNot addictive; excess can throw off the thyroid's response to iodine.

Sources

These are institution pages you can check—not a certification of this ingredient.

Medical disclaimerThis page is compiled by the HerbBB editorial team for general health information only. It is not a substitute for advice from a doctor, pharmacist, or other qualified clinician. If you have a health condition, take medicines, or are pregnant or breastfeeding, speak with a professional first.