Low-sodium salt compositions/substitutes, Modified Potassium Chlorides (MPCs) and methods of making the same. The salt compositions/substitutes preferably include NaCl, KCl and a modifier(s), preferably a cereal flour such as rice flour. A food grade acidulant is preferably included. The composition/substitute will preferably have a Na/K ratio of from about 0.1 to about 9.0, most preferably about 1.0. MPCs preferably include KCl and a modifier(s), preferably a cereal flour such as rice flour. A food grade acidulant is preferably included. The salt compositions/substitutes and MPCs are preferably made by drum drying, extrusion cooking or agglomeration procedures. The MPC is preferably blended and/or co-ground with unmodified NaCl in any desired ratio, preferably 50/50, which gives a Na/K ratio of about 1 (i.e. 20% sodium and 20% potassium), to cost-effectively provide a salt substitute without modifying the NaCl.