We crave salt because it's actually quite rare. And we evolve to if if we encounter it, to make sure we eat it, because we might not encounter it again. So i guess the question comes up is why does the sodium potassium a t p a pump blow out sodium and take in potassium? Similarly, if you look at the calcium magnesium ratio, it takes in magnesium and blows out calcium. The typical cell whether it's a human, reptile, fish or whatever, contains very tightly regulated amounts of these six ions. When those ions get out of wack, as they do in cancer and heart disease, then we have a lot of problems.

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