nobody is ever gonna hurt themselves with Lugols just taking it orally. it would take real effort to do so. i know people who have taken a gram of lugols. the info i was sharing way back when was based a lot on the fear of Iodine that is ubiquitous. i found that fear to be completely without merit. these days, along with 100mg of Lugols being the bare minimum to fix Iodine deficiency and progress toward sufficiency and to combat halogen imbalance, i tell people to take a gram of KI every day for a week or two to see what you got. its just amazing what that much Iodine can do for a person.
btw, there can be diminishing returns on larger doses of lugols. the elemental iodine is quite reactive and can cause a little distress.