Potassium Iodide 225 mcg by Pure Encapsulations

If you rarely use iodized salt, avoid dairy and eggs, or eat a vegan diet, an iodine supplement can cover a common gap. This dose fits adults with low dietary intake or low Urinary Iodine on testing. It’s also reasonable preconception and in pregnancy when needs rise, under clinician guidance. If your TSH (thyroid‑stimulating hormone, the signal telling the thyroid to work) is high with low Free T4 (the main thyroid hormone), correcting iodine intake sometimes normalizes labs within 6–12 weeks.

Iodine is the raw material your thyroid uses to make T4 and T3 (the hormones that set cellular energy pace). Potassium iodide is a simple, well‑absorbed form the thyroid pulls in through its iodine transporter. Adequate intake lets the gland build hormones consistently; too little limits output. The catch is that excess iodine can overshoot, triggering the Wolff–Chaikoff effect (a temporary shut‑off of hormone making) or, in people with nodular thyroids, episodes of overproduction.

Take 1 capsule with a meal once or twice daily, as the label suggests. One capsule (225 mcg) is a maintenance‑level dose for most adults with low intake; two capsules (450 mcg) edges into repletion territory and is best guided by Urinary Iodine or by thyroid labs (TSH, Free T4, Free T3). Expect any iodine‑related hypothyroid pattern to improve over 4–12 weeks, then re‑test. If you already eat seaweed regularly, stay at the lower end or skip altogether.

Hashimoto’s thyroiditis (autoimmune hypothyroidism) can flare with extra iodine; add only if a clinician advises and monitor Thyroid Peroxidase Antibodies. Graves’ disease, multinodular goiter, or a history of iodine‑induced hyperthyroidism are also reasons to avoid unsupervised use. If you take levothyroxine, changes in iodine intake can alter your dose requirement. Lithium and amiodarone interfere with the thyroid; do not add iodine without medical input. This is not the high‑dose tablet used for nuclear radiation emergencies.