Best Iodine products by transparent scoring (2026)
Single-ingredient products scored by public rules: dose fit, label transparency, data verification, company transparency, third-party testing. Not a measure of efficacy or safety. No paid placement.
Products ranked: 81 · Reference range: 150 – 1,100 mcg (source) · Updated 2026-11-01
Reference range: from 100% of the US Daily Value to the upper reference value.
Single-ingredient products only.
Left out of this list: daily dose above 11,000 mcg (10× UL), treated as a likely label error (15); combination products (a single-ingredient list exists) (18)
Dose fit 40 · Label transparency 20 · Data verification 15 · Company transparency 15 · Third-party test 10 (No data (not scored); the other four parts are rescaled from 90 to 100) — Methodology · Iodine →
| Rank | Product | Per day | Score | Breakdown | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 tie |
Iodine 150 mcg Bulletproof · US NIH DSLD |
300 mcg | 100.0 | Breakdown
|
||||||||||||||||
| 1 tie |
Iodine 500 mcg Solaray · US NIH DSLD |
500 mcg | 100.0 | Breakdown
|
||||||||||||||||
| 1 tie |
Iodine Liquid Drops Unflavored NutraChamps · US NIH DSLD |
250 mcg | 100.0 | Breakdown
|
||||||||||||||||
| 4 | Iodine from Kelp Whole Foods Market · US NIH DSLD |
225 mcg | 97.8 | Breakdown
|
||||||||||||||||
| 5 tie |
Iodine (Potassium Iodide) Pure Encapsulations · US NIH DSLD |
450 mcg | 94.4 | Breakdown
|
||||||||||||||||
| 5 tie |
Kelife Iodine Douglas Laboratories · US NIH DSLD |
250 mcg | 94.4 | Breakdown
|
||||||||||||||||
| 5 tie |
Sea Kelp with 200 mcg of Iodine Puritan's Pride · US NIH DSLD |
200 mcg | 94.4 | Breakdown
|
||||||||||||||||
| 8 | Iodine & Tyrosine Thorne Research, Inc. · Health Canada LNHPD |
225 mcg | 87.8 | Breakdown
|
||||||||||||||||
| 9 | NutraChamps Iodine Drops NutraChamps Inc. · Health Canada LNHPD below reference range |
125 mcg | 85.9 | Breakdown
|
||||||||||||||||
| 10 tie |
European Iodine 150 mcg Healthy Origins · US NIH DSLD |
300 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Iodine Mineralife · US NIH DSLD |
500 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Iodine Performance Lab · US NIH DSLD |
150 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Iodine 250 mcg Divine Bounty · US NIH DSLD |
250 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Iodine 325 mcg Nutricost · US NIH DSLD |
325 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Iodine From Kelp 225 mcg BIOVEA · US NIH DSLD |
225 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Iodine Gold 300 mcg NutriGold · US NIH DSLD |
300 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Iodine With Kelp L.A. Naturals · US NIH DSLD |
150 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Iodine from Organic Seaweed 650 mcg Dr. Mercola · US NIH DSLD |
650 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Iodine with Kelp Thymely Solutions · US NIH DSLD |
150 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Kalium Iodine Amvilab · US NIH DSLD |
150 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Kelp (Iodine) 150 mcg Nature's Blend · US NIH DSLD |
150 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Kelp Iodine Everyday Health · US NIH DSLD |
300 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Kelp With Iodine Vitamer Laboratories · US NIH DSLD |
225 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Kelp with Iodine Natural Nutra · US NIH DSLD |
225 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Liquid Iodine Thymely Solutions · US NIH DSLD |
150 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Nascent Iodine H!D Hallelujah Diet · US NIH DSLD |
620 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Nascent Iodine Health Ranger's · US NIH DSLD |
700 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Natural Iodine From Kelp Anabolic Laboratories · US NIH DSLD |
225 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Organic Iodine Sunwarrior Be Well · US NIH DSLD |
225 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Organic Iodine Liquid Drops Unflavored Mary Ruth's · US NIH DSLD |
250 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Organic Iodine Liquid Drops Unflavored Mary Ruth’s · US NIH DSLD |
250 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Raw Whole Food Iodine Peak Performance · US NIH DSLD |
150 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 10 tie |
Tri-Iodine Chocolate 500 mcg Terry Naturally · US NIH DSLD |
500 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 34 tie |
Kelp (Iodine Source) 225 mcg Swanson Premium Brand · US NIH DSLD |
225 mcg | 81.1 | Breakdown
|
||||||||||||||||
| 34 tie |
Kelp 150 mcg Of Natural Iodine NOW · US NIH DSLD |
150 mcg | 81.1 | Breakdown
|
||||||||||||||||
| 34 tie |
Nutrisorb Iodine BioCare · US NIH DSLD |
150 mcg | 81.1 | Breakdown
|
||||||||||||||||
| 34 tie |
Sea Iodine 1000 mcg Life Extension · US NIH DSLD |
1,000 mcg | 81.1 | Breakdown
|
||||||||||||||||
| 38 tie |
Albi Imports Kelp 550 mg capsules Bona Vita Holdings Inc. · Health Canada LNHPD |
358 mcg | 76.7 | Breakdown
|
||||||||||||||||
| 38 tie |
Algues marines Herbes Universelles inc. · Health Canada LNHPD |
200 mcg | 76.7 | Breakdown
|
||||||||||||||||
| 38 tie |
Bladderwrack (Natural Iodine) Holy Land Traditional Medications Inc. · Health Canada LNHPD |
400 mcg | 76.7 | Breakdown
|
||||||||||||||||
| 38 tie |
CODEAGE Iodine + CODEAGE LLC · Health Canada LNHPD |
650 mcg | 76.7 | Breakdown
|
||||||||||||||||
| 38 tie |
Dr. Tahir's Iodine 800 mcg capsules Toronto College of Naturopathic Medicine Inc. · Health Canada LNHPD |
800 mcg | 76.7 | Breakdown
|
||||||||||||||||
| 38 tie |
GOOD FOR YOU Kelp 150 mcg Iodine Good For You Corp. · Health Canada LNHPD |
150 mcg | 76.7 | Breakdown
|
||||||||||||||||
| 38 tie |
HERBAL SELECT Norwegian Kelp 550mg Puresource Corp. · Health Canada LNHPD |
550 mcg | 76.7 | Breakdown
|
||||||||||||||||
| 38 tie |
Iodine A.N. Tyler Holdings Ltd. · Health Canada LNHPD |
220 mcg | 76.7 | Breakdown
|
||||||||||||||||
| 38 tie |
Kelp Nutricorp International · Health Canada LNHPD |
650 mcg | 76.7 | Breakdown
|
||||||||||||||||
| 38 tie |
Kelp Jamieson Laboratories Ltd./ Nutricorp International · Health Canada LNHPD |
650 mcg | 76.7 | Breakdown
|
||||||||||||||||
| 38 tie |
Kelp Canadian Sun Supplement City Ltd. · Health Canada LNHPD |
150 mcg | 76.7 | Breakdown
|
||||||||||||||||
| 38 tie |
Liquid Iodine Forte Biotics Research Corporation · Health Canada LNHPD |
150 mcg | 76.7 | Breakdown
|
||||||||||||||||
| 38 tie |
NOVA Myco-Biome Group 2025 Inc. dba Nova Scotia Organics · Health Canada LNHPD |
160 mcg | 76.7 | Breakdown
|
||||||||||||||||
81 products were scored; the top 50 are listed here. See the rest in the product list.
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.