Most people associate electrolytes with sports drinks and workouts. Their role in everyday heart function gets a lot less attention than it probably deserves.
Sodium, potassium and magnesium regulate the electrical signals that tell your heart when to contract. Get that balance off, even slightly, and things like muscle function and heart rhythm can be affected.
You lose and use electrolytes constantly, not just during exercise. Diet, hydration, sleep and stress all play into the balance, which is part of why a daily source — not just a post-workout drink — can make sense.
Sodium citrate, potassium citrate and magnesium glycinate each play a slightly different role, which is why the formula pairs all three rather than leaning on a single mineral.