Electrolyte Supplements: Who Actually Needs Added Sodium

Summary

For most people eating normally, an electrolyte product is a solution to a problem they don't have: the kidney regulates sodium tightly, average intake already sits **above** health targets, and the genuine "add sodium" cases are narrow and situational (prolonged endurance/heat exercise, ketogenic/low-carb diets, fasting, specific medical conditions). The **J-shaped** sodium–mortality curve means very low and very high intakes both track higher risk, so "less is always better" is wrong too — but that curve does not license the LMNT-style "everyone is deficient, just load 1,000 mg+" pitch, whic