The War on Iodine. Part 4 — Dose, Context and Getting It Right
Throughout this series we’ve established that iodine is an essential element, not a synthetic lab creation. We’ve shown that thyroid medications and iodine supplementation are completely different interventions. And we’ve laid out the evidence that iodine deficiency is real, widespread, and measurable.
Now for the part that actually affects what you do next — how to use iodine properly.
Medicine Girl’s hit pieces completely miss something important, not everyone needs the same approach. The “iodine is universally dangerous” narrative is wrong. But so is “everyone should take 50mg immediately with no consideration for individual circumstances.”
The Dosing Spectrum
Iodine isn’t one-size-fits-all. The range between preventing gross deficiency and achieving optimal health is enormous:
150mcg daily (RDA level): Just enough to stop you developing a goitre. Nowhere near optimal for whole-body health. This is like saying you need 10mg of vitamin C to prevent scurvy and calling it a day.
1–3mg daily (historical baseline): What pre-industrial Western populations likely consumed from iodine-rich soils, seafood, and properly-fed livestock. Supports basic thyroid and whole-body function, but still well below Japanese intake levels.
12.5–50mg daily (therapeutic range): Dr. Brownstein’s typical dosing range, comparable to traditional Japanese dietary intake. Used to replete deficiency and address specific health issues.
50–100mg+ daily (high therapeutic): Reserved for specific clinical situations like severe fibrocystic breast disease or profound deficiency with multiple health issues. Always under practitioner guidance.
The RDA keeps you from developing a goitre. It doesn’t support breast health, cognitive function, immune response, or optimal thyroid performance. There’s a world of difference between “not visibly deficient” and “thriving.”.......