Drinking plenty of cold, clear water is essential for your health and, in fact, for your very survival. You can live much longer without food than you can without water. Water is an important part of body functions and processes, including digestion and elimination. When you’re on a diet, water also acts as a weight-loss aid because it can helps you with eating less.

“Drinking water is important during weight loss because it provides hydration without unwanted calories. “So in addition to not adding calories, drinking water may help replace or avoid unnecessary food calories found in snacks or extra servings at mealtime. Drinking water also helps flush out wastes from the body, which is especially important during times of fat metabolism and weight loss.”
A general recommendation is to drink 4 litre’s of ice cold water per day. Why cold? water is consumed cold and comes out of your body hot. Your body will heat the water up to body temperature and you will burn calories with this process.
You’ll want to drink water before, during, and after every workout. Don’t wait to feel thirsty to start sipping — that’s a sign that dehydration has already started to occur. You want to drink water throughout the day, on a regular basis. Water is water and it is not good to replace water with coffee, tea juices etc.
Remember ice cold water goes into your body at approximately 4/5 degrees and come out at 37 degrees, therefore you use calories to heat up the water. simple way to burn calories