here ya go found it
If it means finishing the diet earlier and with less pain then get glugging!!
Snipped rather than pick out bits.
Though that 'article' is partially correct, the water is for health benefits and may or may not help fat...but we are talking about making sure you get
the minimum. More water than that, doesn't mean more fat loss.
It was a myth that drinking more water to lose weight dating back about 15 years, when some guy wanted to get people drinking 8 glasses of water.
It wasn't proved that 8 glasses was needed to help fat loss, let alone double that to get more, so most good diets will suggest drinking to thirst as the body is amazing for regulating fluids and will usually tell you if it needs more
Obviously VLCDs are a little different as they are dehydrating so it's important to 'up' your fluids to at least 4 pints and more for tetras and bars...but there is no proof that 8 pints will give more.
Some people will swear it does, and others will swear it's made no difference/made the scales go up/made them feel dizzy/ill/brilliant.
But! The cons of drinking too much can outweigh more. More chance of flushing out essential nutrients, electrolytes, and feeling stressed over trying to get yet another bottle down and constant trips to the loo.
So my advise will continue to drink the minimum and more if you are thirsty (which is likely to happen more on a hot day, or if you've had a lot of exercise)...or if you just fancy a drink.
And space it out of course