Keep in mind that fast food companies and a large share of food manufactures thrive on using high amounts of sodium in their processed foods to increase shelf

Keep in mind that fast food companies and a large share of food manufactures thrive on using high amounts of sodium in their processed foods to increase shelf life and improve margins (i.e. from factory until bought by consumer). I don't doubt the validity of that research, but I would be interested to see who funded it. And of course all humans need sodium to maintain a healthy balance, but many foods we eat today unexpectedly have excessive amounts of sodium in them.