I stopped the saltwater/vit C after something like month 3 at 100-200mg of Iodine in Lugols.
Discovered my kidney aches were caused by the salt water. There were no adverse affects (headaches, etc) from stopping, but I never really experienced any detox reaction anyhow.
Haven't done it since. I'm now early in month 6, currently at about 100mg Iodine daily.