Does doing sports makes a human require more magnesium and – if any – how strong is this effect?
Do athletes take magnesium supplements (e.g. pills of magnesium carbonate) because they build muscles and therefore need more of it as their muscle masses increase, or is magnesium consumed by muscle activity (e.g. by causing a chemical reaction which the human body can't undo so it has to excrete the reaction product and get new magnesium from food)?