At the beginning of a diet, our body loses large amounts of fluid as it tries to mitigate the shortage of calories. As the diet progresses three to four weeks, the body will start to burn mostly fat tissue.
Shortages of fluid in the body can affect your health and ability to burn fat. Therefore, in order to properly burn fat, you must maintain a normal fluid balance in your body.
Inadequate drinking to the point of dehydration can cause the following: Decrease in concentration and ability to think clearly, fatigue, weakness, heart rate increases, changes in blood pressure, impairment to kidney function and risk of physical injuries.
How much water should you drink? It very important to drink plenty of water throughout the day, at least 1.5-2 liters (50-75 oz.), which translates to eight to 10 cups of water a day. What should you drink to stay hydrated? This measurement applies to water or herbal tea, but not coffee (which is not as hydrating). This also excludes liquids you should be drinking as you work out (at least 1/2 liter or 16 oz. per hour of exercise).