Low salt intake can reduce total body water and negatively impact performance and cognition.

“a low salt versus a normal salt intake you will have a two pound difference in fluid so we know that like low salt diets barely lower blood pressure like unless you're hypertensive but what they do is they completely dehydrate you your total body water goes down by about two pounds now you might not think that's a lot but when you're an athlete you will absolutely know the effect of not having two extra pounds of water in you from a performance perspective from a cognition perspective”