Great info on iodine. In summary 75% of population is iodine deficient. Iodine keeps endocrine system healthy, fights fatigue, keeps reproductive system healthy, de-calcifies pineal gland and list is going on. The recommended doze identified in 19 century is 3000 mcg (need more if a person has health issues). Current FDA recommendation is 125 mcg (more then 20 times less) …
Symptoms of Iodine Overdose
http://www.globalhealingcenter.com/natural-health/symptoms-of-iodine-overdose/