Should such an essential mineral that was prolifically used throughout biblical scripture be rightfully vilified? Maybe the RDA recommendation on sodium (like healthful fats) got it wrong.
A pair of papers published in the New England Journal of Medicine on sodium intake with over 100,000 participants found definitive evidence for maintaining a relatively larger sodium intake than what has been recommended in the past.
In the two studies from McMaster University (Ontario), this one and another, it was found that the optimum range of sodium intake for humans (including all diets) was suggested to be between 4-6grams per day.
Currently the American Heart Association recommends a sodium intake of 2.3 grams per day. When you take into account the data from the McMaster studies the evidence shows that when sodium drops from 4 grams per day to 2.3 grams per day there is a 50% increase of CVD and a 50% increase in all cause mortality.
Side Note: If you follow a nutritional ketogenic diet and you are ketone adapted your kidneys will excrete salt quickly. And if you do not replace the salt you may feel lightheadedness, fatigue, headaches, dizziness, constipation…basically down right awful. Dr. Stephen Phinney, a Doctorate in nutritional biochemistry and metabolism from the Massachusetts Institute of Technology, recommends adding 2 grams per day of sodium (preferably sea salt or Himalayan salt) to an already lightly salted diet should take care of the above symptoms.