Iodine, particularly in the form of Potassium Iodine, plays a crucial role in thyroid function, which in turn significantly impacts hair thickness and skin health. While the specific study by Li et al. (2012) focused on the effect of iodine source and dose on growth, iodine content in tissue, and plasma thyroid hormones in fattening pigs, it underscores the importance of iodine in biological functions related to growth and hormone regulation. This research indirectly supports the understanding that iodine's role in thyroid hormone production is vital for various physiological functions, including those that affect hair and skin health in humans. The thyroid hormones, influenced by iodine levels, are essential for metabolic processes and development, which include the maintenance of healthy skin and hair.

References

• Li, Q., Mair, C., Schedle, K., Hammerl, S., Schodl, K., & Windisch, W. (2012). Effect of iodine source and dose on growth and iodine content in tissue and plasma thyroid hormones in fattening pigs. European Journal of Nutrition, 51, 685-691. Effect of iodine source and dose on growth and iodine content in tissue and plasma thyroid hormones in fattening pigs