The cochrane review (https://www.ncbi.nlm.nih.gov/pubmed/21735439) already pointed in this direction, namely that although a reduced salt diet reduced blood pressure, that reduction was not correlated with decreased mortality in this case. Looking at sodium consumption without taking into account potassium consumption also appears to be a major issue with lots of previous salt studies. We had people recommend putting 1500mg (DASH diet level) in MealSquares, but we feel confident not going below the 2400mg level for health.

Soylent ran into issues by including around a gram of salt in their 1.0 version with people getting dizzy from too little sodium in the diet. They're now suggesting adding some extra.