As someone who’s in the gym and also enjoys cooking, it’s a lot like cooking from scratch. You go off a basic recipe (I.e. workout routine/diet), try it out, and make adjustments as you find out what does and doesn’t work for you. It’s a lot of trial and error, and there is no one size fits all.

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Unless you're a pro athlete you don't need to be doing all that. Diet well and pay attention to macros, workout regularly and get your rest. That's it. Stressing about pre and electrolytes and all that other stuff isn't gonna do anything but make you burn out

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Electrolytes aren’t needed unless you are sweating a ton and aren’t replacing them through food, don’t worry about those too much, pre workout isn’t needed but food wise 30-60g carbs 30-60 min before a workout, protein post workout, diet wise just make sure you are getting enough protein and eating enough fat. Also don’t forget about fiber

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