Andrew Huberman· PhD
what you want to consume in that is what I call Sweat what I mean by that is you don't actually want to necessarily consume water only during a workout you want to consume something that is isoosmotic to your blood so something that is the same concentration that you lost in your sweat so if you've done a sweat test you would then drink a fluid that is of the same osmolality um the short version of that some in the neighborhood of 200 to 400 milligram of sodium