I have more than enough sodium from my salt intake. Like yourself, I find it helpful. However, I don't think baking soda is such a great idea, as this may provide excess sodium (sodium bicarbonate). But more than that is the alkaline thing I"m a bit wary about.

i used to eat potatoe chips with plenty of salt and felt pretty good and I don't believe it was iodised either. That was when I was able to get away with consuming high carb foods (though I was unable to eat sugar/wheat/gluten/yeast products).

It's also a good thing to add ocean sea salt to vitamin C or lemon drinks. About half a teaspoon or so.