Potassium Plus Iodine
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
| Ingredient | Amount |
|---|---|
| Iodine101 systematic reviews · 210 randomised trials | 225 mcg |
| Potassium87 systematic reviews · 1010 randomised trials | 99 mg |
| Sodium Alginate | 100 mg |
Certifications & Testing
Other Ingredients
Cellulose, Croscarmellose Sodium, Stearic Acid, Silica, Magnesium Stearate
Recommended Use
Suggested Usage: Take 1 tablet daily with a meal.
Warnings
Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens. Caution: For adults only. Consult physician if pregnant/nursing, taking any medications (especially those that may affect kidney function or blood potassium levels), or have a medical condition (especially heart
Frequently Asked Questions
What is NOW Foods Potassium Plus Iodine's Formulate score?
NOW Foods Potassium Plus Iodine scores 84 out of 100 (grade A-) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is NOW Foods Potassium Plus Iodine worth it?
NOW Foods Potassium Plus Iodine scores 84/100 (grade A-). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in NOW Foods Potassium Plus Iodine?
Each serving contains Iodine (225 mcg), Potassium (99 mg), Sodium Alginate (100 mg). Serving size: 1 Tablet(s). 180 servings per container.
How do I take potassium plus iodine?
Suggested Usage: Take 1 tablet daily with a meal.
Who makes Potassium Plus Iodine?
Potassium Plus Iodine is made by NOW Foods. See Formulate's full grade and product lineup for NOW Foods on its brand page.
Is NOW Foods Potassium Plus Iodine third-party tested?
NOW Foods lists the following certifications and testing for this product: Vegan, Vegetarian, Gluten-Free, Dairy-Free.
Related Supplements
Track potassium plus iodine in your stack
Build a personalized supplement stack free in your browser — no install. Flag dose overlaps and interactions, and keep every product scored against the latest evidence.
Is Potassium Plus Iodine right for your goals?
Two questions, then every ingredient graded against what you're actually trying to do — plus what it costs per effective dose.
Build my stack2 questions · free · no account needed to start
Also on iPhone — get the free app
Evidence-based supplement guides, no spam
We send a short digest when new guides drop — nothing else. No affiliate pushes, no sponsored content, unsubscribe anytime.
Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.