I think people need to take some of the advice here with a grain of salt (no pun intended). The first question people should ask themselves is why they are adding more salt on top of whatever dietary sodium that is consumed through foods, electrolyte drinks, and gels. The human body normally maintains a balance between 135-145 mEq/l of sodium in the blood. Too low and you get hyponatremia, which can be caused either through excessive water consumption or sodium loss.
If your body is maintaining its equilibrium of sodium/water levels in the blood, adding more salt wonāt make things better. It will not prevent muscle cramps (which are primarily caused by fatigue). It will not make you perform better. In fact, adding excessive sodium can cause water retention, bloating, increased blood pressure, and a number of other issues.
I take Tailwind with me, which has 310 mg of sodium per scoop. In a 500 ml Softflask, Iāll put three scoops in, which is 40% of my RDA of sodium. Plus Iāll eat a bagel for breakfast (440 mg of sodium) with peanut butter (280 mg of sodium for 4 tblspn). Add in some gels, and Iām close to 2,000 mg of sodium, which is near the daily RDA. Iām a heavy, salty sweater and I never feel the need to supplement salt on top of this.
Hereās the bigger issue for meātoo much sodium can cause diarrhea. Your body wants to maintain an equilibrium in the electrolyte balance, so too much sodium causes it to draw water into your intestines to flush excess sodium. Water in your intestines leads to, well, lots of portapotty stops.