This post is derived from that one, where someone says
if you meant salt as a nutrient such as carbs, protein and all, there is salt in the stuff one eats already.
The background is "Naked and Afraid", a Discovery Channel survival show, where a group of people survive for 21 or 40 days without any cloth or food.
They are not next to a shore. They are in amazon jungle or Solani River Basin in Africa.
The footage shows that the candidates got food by hunting but never got additional salt.
They are hunting in Africa. Don't they need additional salt? Is the amount of salt they got from animals like impala sufficient?