I think Celtic Sea Salt is different from Sea Salt and Table Salt.
This site makes a distinction of the three
http://www.juicing-for-health.com/sea-salt-health-benefits.html
I saw Whole Foods had Sea Salt and Celtic Sea Salt. I had to return the regular sea salt I bought when I found out there was a difference, LOL. From what I've been reading, it seems like only table salt is bad for you because it is processed.
I'm putting a tablespoon of the celtic sea salt in a gallon of water and using that as my drinking water for the day.