[rmanocha]

Not sure about the "science" behind this, but this technique has definitely worked for me. I've been drinking ~3 litres of water daily for the last year - and along with other changes in my lifestyle, have lost ~65lbs in that time.

If for no other reason, drinking that water reduces my urges for fizzy drinks - which helps a lot. Additionally, as others have said - reducing the amount you eat, in whatever way that works for you, has helped a lot.

[carbocation]

The "science" behind this is a randomized, controlled trial. Why the scare quotes?

[WilliamLP]

For one thing, though scientific, any conclusion is going to be rather soft if it's drawn from one study where human beings self-report calories, and where the difference in weight (2kg) is within the variance of how much our weight can vary within a single day.

[jules]

Heck, if I go cycling in the morning and don't drink enough I can be 4kg heavier after dinner that day than right after cycling.

[carbocation]

Heh, I agree with you. Sadly those concerns would also be valid for many other RCTs!

[whatusername]

because controlled trials that involve large groups of people are very difficult to actually control.