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Sea-Iodine 1000 mcg

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(28090 ratings)
Iodine 1000 mcg
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Score74
Clear dosing is useful, but 1,000 mcg of unspecified iodine is too aggressive for routine self-directed use.
How scoring works
Quantity:60 Capsule(s) • (60 servings)
Goals:
Energy
Metabolism Boost

Score 74

Clear dosing is useful, but 1,000 mcg of unspecified iodine is too aggressive for routine self-directed use.
How scoring works
$6.00($0.10 per serving)
Vitacost
$ 6.03
iHerb
$ 6.00
Amazon
$ 6.00
Pure Formulas
$ 6.00
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Analysis

A single capsule supplies 1,000 mcg of iodine, making the formula simple and easy to quantify. Iodine can support normal thyroid hormone production when dietary intake is insufficient.

The chemical source is not identified, so stability and absorption cannot be assessed confidently. The amount is close to the usual adult upper limit and far above basic maintenance needs.

A clinician-directed plan for a documented iodine need is the most sensible fit. People seeking ordinary daily support should choose a much lower amount with a named source.

Who is it for
  • Adults with a professionally identified iodine need
  • People following a defined high-dose plan
  • Users wanting a single-ingredient capsule
Best for
  • Clinician-directed iodine supplementation
  • Short, defined dosing periods
  • Single-active use

Pros

  • Clearly states elemental iodine
  • Simple one-capsule format
  • No competing active ingredients

Cons

  • Iodine source is unspecified
  • Amount greatly exceeds maintenance needs
  • Little dosing flexibility

Warnings

  • The 1,000 mcg amount approaches the usual adult upper limit and may disrupt thyroid function in susceptible users.
  • People with Hashimoto’s disease, Graves’ disease, thyroid nodules, or thyroid medication use should not add this dose without direct guidance.
  • Combining it with kelp, seaweed, or another iodine supplement can push total intake above the adult upper limit.

Nutrient quality

64 Moderate impact

The marine iodine source is named but lacks geographic and purity details. The iodine amount is far above routine maintenance needs and close to the adult upper limit, while a high iodine intake may worsen thyroid dysfunction in susceptible users.

Ingredient transparency

72 High impact

The iodine amount is clear, but the exact chemical form and marine-source purity are not supplied. Serving totals are apparent, but full directions and inactive ingredients are not supplied.

Customer satisfaction

72 High impact

The supplied average rating is strong. The exceptionally large rating base makes the average highly stable, while complaint and firsthand experience details are unavailable.

Value for money

89 Highest impact

Formula quality provides partial support for the asking position. The serving value is highly competitive within the category.

Report analysis

Goals

Energy
Impact
High effect
B Goal FitB Strength of SupportC- CoverageA+ Formula Quality
Iodine · 1000 mcg

Sea-derived iodine supports thyroid hormone production and may help energy when iodine intake is inadequate. The single-capsule design is focused and clearly dosed.

The amount is high for routine unsupervised maintenance, and the marine source lacks geographic purity details. Users with thyroid disease or iodine sensitivity need individualized guidance before taking it.

Study evidence
Iodine Adverse 3 studies
Metabolism Boost
Impact
High effect
B Goal FitC- Strength of SupportD- CoverageA+ Formula Quality

Iodine supports thyroid-hormone synthesis and may help metabolic rate when iodine intake is insufficient. Extra iodine does not boost metabolism when thyroid function and iodine status are normal.

The marine source and active amount are clearly stated. The high amount may worsen thyroid dysfunction in susceptible users.

Study evidence
Iodine Mixed 17 studies

Ingredients

IngredientAmount per serving
Iodine
1000 mcg
Gluten Free Adults 18–50
Report overview
Iodine · 1000 mcg OverallScore80
C+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyA+ Value

The named Sea-Iodine source provides a high but still tolerable active dose. No organic status or geographic origin is given, so marine-source purity cannot be fully assessed. A single capsule and very low serving cost offer strong efficiency for users who specifically need more than a maintenance dose.

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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Association of radioactive iodine treatment with survivorship symptoms and primary care utilisation in women of reproductive age with thyroid cancer: a retrospective cohort study.
    Devanarayan P; Hartman M; Partin M · Family medicine and community health · 2026
    Cohort study10,882 participantsEnergy forIodine
  2. Energy level and fatigue after surgery for thyroid cancer: A population-based study of patient-reported outcomes.
    Hughes DT; Reyes-Gastelum D; Kovatch KJ; Hamilton AS; Ward KC; Haymart MR · Surgery · 2020
    Cohort study2,584 participantsEnergy forIodine
  3. Health-Related Quality of Life in Differentiated Thyroid Cancer Survivors: A Cross-Sectional Study From Turkey.
    Gültekin A; Kahraman MY; Şengöz T; Şimşek FS · Head & neck · 2026
    Cross-sectional study202 participantsEnergy forIodine
  4. Iodine Supplementation Decreases Hypercholesterolemia in Iodine-Deficient, Overweight Women: A Randomized Controlled Trial.
    Herter-Aeberli I; Cherkaoui M; El Ansari N; Rohner R; Stinca S; Chabaa L; von Eckardstein A; Aboussad A; Zimmermann MB · The Journal of nutrition · 2015
    Randomized trial163 participantsMetabolism Boost forIodine
  5. Effect of oral iodized oil on thyroid size and thyroid hormone metabolism in children with concurrent selenium and iodine deficiency.
    Zimmermann MB; Adou P; Torresani T; Zeder C; Hurrell RF · European journal of clinical nutrition · 2000
    Single-arm trial51 participantsMetabolism Boost forIodine
  6. Serum Iodine Concentration as a Biomarker for Individual Iodine Nutrition and Thyroid Function in Pregnant Women: A Cross-Sectional Study in Hubei Province.
    Xu M; Dai X; Wang Z; Guo C; Zhang B; Guo H · Public health nutrition · 2026
    Cross-sectional study1,197 participantsMetabolism Boost forIodine
  7. Iron status influences the efficacy of iodine prophylaxis in goitrous children in Côte d'Ivoire.
    Zimmermann MB · International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition · 2002
    OtherMetabolism Boost forIodine
  8. Persistence of goiter despite oral iodine supplementation in goitrous children with iron deficiency anemia in Côte d'Ivoire.
    Zimmermann M; Adou P; Torresani T; Zeder C; Hurrell R · The American journal of clinical nutrition · 2000
    Non-randomized trial109 participantsMetabolism Boost forIodine