Weight loss effects of water

The apparent weight loss effects of water are still a subject for further research, but there is some evidence that suggests that drinking water can be associated with appetite reduction (for middle-aged and older people),consuming fewer calories,burning slightly more calories,and eating more fruits and vegetables. Increased water consumption, or replacement of energy-containing beverages with energy-free beverages,^[ or consumption of water-rich foods such as fruits and vegetables with a lower energy density,may help in weight management. Popular advice to children regarding water consumption is often inaccurate.
This evidence has been used by some of the scientists who worked on this research, and by others, to bolster suggestions that people who are trying to lose weight can benefit from augmenting – but not replacing – their dietary programs by drinking water, either before meals or at any time. Such advice had previously been given by dieticians even before the most recent research was published.
In the case of appetite reduction, the apparent effect has been reproduced in a published studyin adults aged 55–75, half of whom were instructed to drink 500ml of water before every meal, while following a low-calorie diet. This behaviour led to the water-drinking cohort losing weight faster over a 12 week period. On average, the water-drinking cohort also continued to lose weight - although at a slower rate - over the following 12 month period, even though they had ceased their low-calorie diets. The study authors attribute this to the fact that those participants continued to drink water before meals.
Drinking water prior to each meal may help in Appetite Suppression. Some also claim that drinking cold water aids in calorie burn as the body has to work to heat the cold water in the body and hence burning calories