Can water help with weight loss? 
I came across an interesting article “Mouth Watering Fare” in Diabetes Dialogue Magazine, written by Registered Dietitian Rosie Schwartz.
The article summarized interesting research presented at the 2010 National Meeting of the American Chemical Society showing that:
Adults who drank two cups of water before each meal consumed fewer calories and lost more weight than those who did not.
Rational:
1. Drink water before meals you’ll get full faster and therefore eat less food/calories.
The water drinkers also reported feeling more alert and less tired than usual- a sign that they may have been in a mildly dehydrated state before the study.Being mildly dehydrated may not be very dangerous; however it can interfere with hunger signals.
You may think you are hungry when you are actually thirsty!
When it comes to diabetes if you are mildly dehydrated this can lead to higher blood sugar (glucose) readings, because the concentration of sugar in the blood is higher. Also blood sugar readings can be higher as a result of overeating due to interference with hunger signals.
2. Drink water before meals to prevent dehydration and interference with hunger signals. Decreased hunger=less food/calorie intake=weight loss.
reference:
http://www.diabetes.ca/diabetes-and-you/literature/diabetes-dialogue/
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