Potassium iodide is known as a thyroid mineral (100) as it keeps iodine levels regulated in the thyroid (101). To date there is no research examining the effects of potassium iodide on athletic performance.
100 – Marine, D. (1935). The physiology and principal interrelations of the thyroid.Journal of the American Medical Association, 104(25), 2250-2255.
101 – Cavalieri, R. R. (1997). Iodine metabolism and thyroid physiology: current concepts. Thyroid, 7(2), 177-181.