This reminds me of something I have always done to curve hunger and eat less .... I should make a video of it but here is the basics .....

You take a plastic bottle of water and slam it ... I mean SLAM IT ... squeeze it forcing yourself to drink it quickly.

What this does is hydrates you with no harm whatsoever and makes you feel full for a period of time. For a man it is suggested to drink like 8 bottles of water a day anyway ... just thought I would share a little trick :)