Not saying claims are substantiated, but depends what it truly means to the individual. I know the effect on me, since I've tried it for longer periods of time (though I'd advice against drinking too much water during the day, as proponents often claim is soo healthy). If there's miracles, it's rather subtle. No need to become super-men or women! ;)
Science is all about experential experimentation after all (with healthy dose of scepticism).
As someone else pointed out, I’m not suggesting that drinking plenty of water isn’t good for you - I do it myself. It’s good for you, and there’s plenty of evidence to back that up.
I AM saying there’s no evidence that doing so “flushes toxins from your body”. The word toxins here is what is suspect, as that term is way overused these days, and rarely in a way that aligns with its actual meaning.
tl;dr Toxins means something specific and if your body is full of toxins you should probably seek medical assistance at once. Drinking water isn’t going to help.
It doesn't make that claim any less bullshit though. I mean, I could tell people to stop smoking, because it makes you phlegmatic. The end result could still be a good thing, but the claim itself is absolute horsecrap.
It's established the body needs water. The contention is only about how much and when to drink it. It's not far fetched there's some timing that are more optimal than others. Too much is bad, and too little is also bad.
There's also exhaggerated sales-claims from believers ofc.