Wolf Chaikoff effect-
Wolff-Chaikoff effect is a phenomenon in which excess iodide transiently inhibits thyroid iodide organification by thyroid peroxidase enzyme thus inhibiting thyroid hormone production leadung to hypothyroidism. In individuals with a normal thyroid, the gland escapes from this inhibitory effect and iodide organification resumes; the suppressive action of high iodide may persist, however, in patients with underlying autoimmune thyroid disease. Reference : page 2285 Harrison's Principles of Internal Medicine 19th edition
Endocrinology
Excess iodine intake causes hypothyroidism
Iodine induced hypehyroidism
Thyrotoxicosis due to excessive amount of iodine ingestion
Drug induced hypehyroidism
Excess iodine intake causes hypothyroidism