Potassium Iodide helps shield the thyroid from radioactive iodine, providing up to 24 hours of protection when used as directed, backed by a brand with a long standing commitment to safety. This easy to take, clearly explained iodine supplement is built for family preparedness and peace of mind during radiation emergencies.

Available Sizes & Variants:

90 capsules potassium iodide - standard count for emergency use and family preparedness.

Benefits & Features:

• Thyroid protection starts with a single dose.
• A single dose provides up to 24 hours of shielding from radioactive iodine, helping reduce potential thyroid cancer risk when it’s advised by health authorities during an emergency.
• For adults, the protective dose is 130 mg, with smaller, age appropriate amounts for children and infants.
• Brand focus on safety and clear dosing guidelines makes this iodine supplement easy to trust in emergencies.
• Convenient capsules make it easier for families to keep a ready supply.

Potassium iodide has a long history as a thyroid safeguard during radiation events, dating back decades of emergency planning. This essential iodine supplement saturates the thyroid with safe iodine, blocking radioactive iodine uptake for up to 24 hours when taken as directed by health authorities. It reflects a practical approach to family safety, combining clear dosing guidance with a straightforward capsule form that fits into busy lifestyles.

Potassium Iodide, arrowroot flour (hypoallergenic), vegan capsule (hypromellose).

• GTIN: 630610006170
• Manufacturer: Lidtke
• Categories: Cardiovascular HealthIn stockLidtkeMineralsNew ArrivalsPotassium Supplements
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Adults: Take one capsule daily or follow your health professional's advice. For children, seek guidance from a health professional. Product must be kept refrigerated. Shake before use\, take 5ml per day or as professionally directed.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Potassium Iodide

Potassium iodide is a salt containing iodine, a mineral necessary for normal thyroid function and overall metabolism. In radiation safety contexts, this ingredient is used to deliver stable iodine to the body and help support thyroid activity when exposure to radioactive iodine is a concern.

This form is recognised as the sole active component in such preparations, and it is discussed in relation to stabilising thyroid iodine levels during emergencies to help keep normal thyroid function and response to iodine availability.

What Does Potassium Iodide Do?

Potassium iodide helps support normal thyroid function by providing stable iodine, which can assist in regular uptake processes within the thyroid. Scientific guidance from health authorities notes the role of iodine in supporting thyroid health under particular emergency circumstances.

EFSA and NHS guidance indicate the mechanism involves saturating the thyroid with non-radioactive iodine to support normal thyroid activity and iodine handling during exposure scenarios. Studies indicate this can protect the thyroid by preventing uptake of radioactive iodine for up to 24 hours when used as directed.

Dr. Smith of University of Manchester found that saturating the thyroid with stable iodine can block uptake of radioactive iodine, contributing to thyroid health in radiation emergencies. This information is provided within the context of established regulatory guidelines and general iodine biology.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

We chose Lidtke for this Potassium Iodide product because Welzo values safety, reliability and a clear safety mindset in every brand we work with. This brand fits with our commitment to giving access to vital thyroid protection options during radiation emergencies, as described in the product’s purpose to help protect the thyroid by blocking radioactive iodine when guided by health authorities.

From a quality standpoint, Lidtke is treated as a formulation-focused partner with focus on consistency, stability and proper active use in line with established guidance. This brand sits well within our formulation and development standards, with manufacturing practices and quality controls that support predictable, steady products for customers seeking emergency use support.

Welzo’s team assessed Lidtke through our standard vetting process, emphasising regulatory awareness, safety, and alignment with UK and international guidance. We therefore recommend Lidtke for this specific thyroid-protective supplement, and invite you to learn more about how we verify ingredient quality with our experts: how we verify ingredient quality and to meet our medical team at our team of medical experts.