Thyroid
2 ingredients with authorised wording · 2 assessed and refused · 437 capsules
Only iodine and selenium hold authorised register wording about the thyroid, quoted exactly on their pages. Thyroid conditions are diagnosed and managed by a GP, and the British Thyroid Foundation is the specialist charity.
Nothing here is medical advice. The wording is the GB register's, quoted exactly; whether a product qualifies to use it is the seller's responsibility. Speak to a GP or pharmacist before taking a supplement, especially if you are pregnant, take medicines or have a diagnosed condition. Wording from the GB nutrition and health claims register; mapping reviewed 4 September 2026.
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Holds an authorised claim
Selenium
1 authorised claim · 95 capsules · ingredient page- “Selenium contributes to the normal thyroid function”
Iodine
1 authorised claim · 45 capsules · ingredient page- “Iodine contributes to the normal production of thyroid hormones and normal thyroid function”
Assessed by the register and not authorised
The register looked at claims for these relating to thyroid and turned them down. Sellers may not make them. Each links to the exact wording and to the capsules that carry it anyway.
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