Nutrition
Sweat Magnesium Loss Training
Sweat magnesium loss during training is modest per liter—food sources first; avoid megadose race-day magnesium that upsets gut.
Sweat magnesium loss during training is relatively low per liter compared with sodium, yet heavy sweaters and poor diets may still run marginal on magnesium-rich foods—nuts, legumes, greens, and whole grains. Megadose magnesium supplements before races can loosen stools.
Focus food first; add modest electrolyte magnesium only if diet logs are thin.
Common questions
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Should every athlete take magnesium for sweat losses?
Not by default—fix dietary gaps first. Excess supplemental magnesium before events can cause GI distress without fixing sodium-driven cramps.
Related terms
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