Originally Posted by Inusuit

Exactly zero of those are or reference even one scientific study. I'm not aware of any actual scientific studies that link dehydration or electrolytes to cramps but there are studies that specifically look at dehydration and electrolytes and find no relation between them and cramps.

As for the study you mention about consumption of fluids AFTER dehydration causing cramps that study had this to say: "It has been documented, in recent studies, that EAMC stems from an imbalance between excitatory drive from muscle spindles and inhibitory drive from Golgi tendon organs to the alpha motor neurons, rather than dehydration or electrolytes deficits".

You believe what you want. As for me, I'll trust actual science.