Thyroid Cancer 101: Higher Iodine Intake= More Papillary Thyroid Cancer
Iodine intake and thyroid carcinoma–a potential risk factor.
Exp Clin Endocrinol Diabetes. 1998;106 Suppl 3:S38-44.
Comments on this article:
1.Increased TSH secretion have been associated to increased risk of thyroid cancer, most notably follicular and anaplastic carcinomas.
2. Elevated incidence and mortality rates of thyroid cancer, however, are also found in areas were iodine intake is high (Hawaii, Iceland).
3. At least in some countries (Switzerland), a favourable impact of the introduction of iodized salt on mortality from thyroid cancer has been reported.
4. Elsewhere, the correction of iodine deficiency has coincided with elevations of diagnostic standards (e.g., spread of thyroid scintigraphy, ultrasound, and fine-needle biopsy) and corresponding increases in incidence of papillary carcinomas, often clinically silent, thus hampering a distinction of the two phenomena.
5.Upward trends of papillary carcinoma incidence have, however, been seen in most affluent countries, irrespective of the iodine status of the population.
Comments: The random use by a USA population that thinks supplements improve their health need to think about the dangers of of thyroid support vitamins, Kelp, and iodine drops if they have a thyroid condition.
Richard Guttler MD,FACE