Cramping is one thing that can drastically affect your race performance.
One of the common misconceptions is that using salt tablets (sodium chloride tablets) when you are racing can help prevent you from cramping. This is actually not true.
Salt tablets are very useful when you are doing longer races but not for preventing cramp. What salt tablets do is promote gastric emptying. In other words the Sodium in salt tablets helps push fluid and nutrition through your stomach. From personal experience I have found that taking 2 tablets (about 1200mg) per hour works best.
You can use straight sodium chloride tablets or you can use a buffered salt tablet such as Lava Salts.
If it is cramp prevention you are after then it is magnesium you need. Each time a muscle contracts, magnesium is used. That is why using a magnesium supplement can help prevent cramping.
One of the best Magnesium supplements on the market is Endura Max.
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