mcg

The tolerable upper limit for iodine is 1,100 mcg/day.

We agree that 175 mcg might be a high dose.

Look for those listing 10 mcg or more per serving — about half your daily need — on the label.

Each dose, given three weeks apart, is 10 mcg instead of the 30-mcg dose authorized for teens and adults.

NIH recommends 120 mcg for men 19 and older and 90 mcg for women 19 and older.