Banner showing the title 'Kelp and Your Thyroid' with a pile of green kelp and The Healthy RD logo.

Kelp and Your Thyroid: Iodine Benefits, Risks, and How to Know Your Dose Is Right

Updated July 2026 — includes new 2025 research on iodine intake and thyroid disease risk, plus a look at why kelp’s iodine content is far less predictable than most labels suggest. Kelp and Your Thyroid: Iodine Benefits, Risks, and How to Know Your Dose Is Right I used to write about kelp mostly as a

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