Hi,I'm having trouble finding un iodized sea salt,but I found Celtic sea salt,light grey celtic,and contains No additives,Certefied Kosher,can I use that instead? Also they don't sell these sea salts here soo found the Celtic one on Amazon,if I can't use this is there another Sea Salt I Can use from amazon? Thanks!! Also,this I'm starting my first Master Cleanse in a couple days but I'm worried I might gain,what do I do/eat Right after the last master cleanse day? And I'm doing the cleanse for 6 weeks and its my first time,is that ok? Thankyou so much !!