Electrolytes, Explained: Salt, potassium, and magnesium without the influencer hype

Nadia Wren

Every feed seems to have someone selling a powder and a promise, but the actual science of salt, potassium, and magnesium is far simpler than the marketing suggests. This is the clear-headed version: what these minerals actually do in the body, how much you really need versus what the label wants you to buy, who genuinely benefits from extra intake, and how to read your own thirst and energy as better signals than any trend. Grounded, direct, and refreshingly free of hype.