Most commercial electrolyte drinks contain 200-400mg sodium and rely heavily on carbohydrates (often 15-25g per serve) to drive absorption. Sodii provides 1000mg sodium, 210mg potassium, and 70mg magnesium with less than 0.8g carbohydrates per serve. This higher sodium, lower carbohydrate approach suits people who get adequate carbohydrates from food but may under-consume sodium, particularly those eating predominantly whole foods or following lower-carbohydrate eating patterns.

The formulation uses Lake Deborah Salt, an ancient lake salt from Western Australia that contains naturally occurring trace minerals alongside sodium chloride. While all salts provide sodium, this particular source offers a broader mineral profile. The product is sugar-free, using natural flavoring, and comes in single-serve sachets that dissolve in water.

Electrolyte Function in Fluid Balance

Sodium, potassium, and magnesium are the primary electrolytes involved in maintaining fluid balance across cell membranes. Sodium is concentrated in extracellular fluid (outside cells), while potassium is concentrated intracellular (inside cells). This concentration gradient creates the electrical potential that allows cells to maintain proper hydration status. Magnesium functions as a cofactor in the sodium-potassium pump, the cellular mechanism that maintains these gradients.

Electrolyte Loss and Replacement

Sweat contains approximately 900-1000mg sodium per liter, along with smaller amounts of potassium and magnesium. During exercise or heat exposure, sweat losses can reach 1-2 liters per hour in some individuals. Replacing sodium is particularly important because inadequate sodium intake can trigger the kidneys to conserve sodium by excreting potassium, potentially creating a secondary potassium deficit even when potassium intake is adequate.