LMNT Sparkling delivers 1,000mg sodium, 200mg potassium, and 60mg magnesium per 12oz can—the same ratios as their stick packs. No sugar, no artificial sweeteners, just carbonation and flavor. Comes in cases of 36 (3 × 12-packs) across Black Cherry, Pineapple Salt Lemonade, Orange Salt, or Variety.
Electrolyte beverages with sodium are well-established for rehydration during and after exercise, particularly in endurance or high-sweat contexts. Multiple observational cohorts and some RCTs show sodium-containing drinks outperform water alone for fluid retention and performance maintenance in athletes. The mechanism is solid and the practical benefit is real, though individual need depends on sweat rate and exercise duration.
Electrolytes (sodium, potassium, magnesium) regulate fluid balance, nerve conduction, and muscle contraction. Sodium in particular drives thirst and fluid retention, helping maintain plasma osmolality and blood volume during or after exercise or dehydration.
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Observational
“During endurance exercise, two problems arise from disturbed fluid-electrolyte balance: dehydration and overhydration.”
“It is the position of the American College of Sports Medicine that adequate fluid replacement helps maintain hydration and, therefore, promotes the health, safety, and optimal physical performance of individuals participating in regular phy”
“Hypohydration can impair aerobic performance and deteriorate cognitive function during exercise.”
“Exercise performance can be compromised by a body water deficit, particularly when exercise is performed in hot climates.”
Evidence is strongest for athletic or high-heat scenarios; casual consumption in sedentary individuals offers no clear benefit over water and adds sodium intake, which may be a concern for those with hypertension or salt sensitivity. Most studies focus on sports drinks with carbohydrates (4–8% glucose), not purely electrolyte formulations. Sparkling versions lack specific human-trial data; carbonation does not enhance rehydration and may reduce palatability for some athletes.
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