Why iodine tablets in case of nuclear radiation?

Por que pastilhas de iodo em caso de radiação nuclear? Foto: Pixabay
Why iodine tablets in case of nuclear radiation? Photo: Pixabay

In the event of a nuclear accident or nuclear attack, radioactive iodine is one of the first substances to escape. It can be absorbed through the air, food, and even through the skin, and is naturally stored in the thyroid.

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Radioactive iodine is carcinogenic and attacks the cells of this gland’s tissue.

Potassium iodide also stores in the thyroid. When administered in high-dose tablets, the gland becomes overwhelmed and can no longer absorb iodine – even the radioactive kind.

If a sufficient amount of good iodine is administered, therefore, there will be no room in the thyroid for radioactive iodine. By not being able to accumulate in the gland, the substance is eliminated by the kidneys.

However, iodine tablets do not protect against other radioactive substances. It is useless to take them preventively, that is, before a nuclear accident, as the thyroid stores the mineral only for a certain period. Unnecessary ingestion of this mineral in high doses can even be dangerous. There are cases in Germany where many people already suffer from hyperthyroidism due to excess iodine.

Why iodine tablets in case of nuclear radiation? Photo: Pixabay

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