Which herb provides an iodide source for thyroid disease treatment?

• A. Ginseng
• B. Bladderwrack
• C. Comfrey
• D. Echinacea purpurea

Answer: (B)

Iodine is essential for thyroid hormone production, so herbs that supply iodide can support thyroid treatment. Bladderwrack, a brown seaweed, is particularly high in iodide, making it the herb that provides an iodide source for thyroid management. The other herbs shown don’t contain meaningful amounts of iodide and are used for different purposes—ginseng as an adaptogen, comfrey for its historical use in healing but with safety concerns, and Echinacea purpurea for immune support. Therefore, bladderwrack is the herb that provides the iodide needed for thyroid disease treatment.