What Are the Dangers of Salt Substitution?


Quick Answer

Salt substitution may cause excessive potassium to build up in people who have kidney diseases that prevent them from easily ridding themselves of it, according to Cleveland Clinic. This is because many salt substitutes use potassium chloride in place of sodium chloride.

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Full Answer

The human body requires potassium for the heart and muscles to function properly, but too much potassium can cause hyperkalemia, notes WebMD. Hyperkalemia can cause weakness, a slow heart rate and possibly life-threatening arrhythmias.

For most healthy people trying to cut back on sodium, salt substitutes are acceptable in moderation, notes Cleveland Clinic, which urges people with kidney problems to consult medical professionals before using salt substitutes.

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