I'm really quite confused by the account. My dad worked in and around remote Alaskan villages for years and that's where most of my impression comes from, but I've also had some of my own exposure.

I'll ask my dad specifically about this salt question when he comes over later.

What I'm thinking is that they may get adequate salt through their regular diet, which is overwhelmingly composed of various seafoods, and that's why they don't add salt to many foods that we would add salt to.