I don't measure, just use it to taste and tend to make sure I have a good sprinkle on meals. The other change I have made is that I don't chug down loads of water / herbal teas like i used to (thinking it healthy), I feel like both these factors have contributed to +ve effects.
I use flakes of Maldon sea salt. @LadyRae I hadn't considered benefits of using iodised salt, what could the issue of using non-iodised salt be? (lower thyroid activity?) I'm not a seaweed or liver eater - though do eat shrimp and other sea food.