Great post.
When I was a youngster I had an overwhelming craving for salt. I mean dump it in my hand and eat it straight kind of craving. At one of my check ups my parents mentioned this to my doctor, he put me on iodine supplements as he said I was probably iodine deficient. The salt cravings went away soon after I started the supplements. Something to think about if you tend to over salt your food, it might be the iodine your really after.