How much water weight do you lose before losing fat?
The first week you're on a diet, almost 70 percent of weight loss is water, Clayton says, a rate which drops to about 20 to 30 percent over a couple of weeks and then stabilizes as your body starts tapping into fat stores.
When you go on diet that either restricts your caloric intake too much or cuts out an entire category of food, like a zero-carb diet, it's possible to see the scale go down by five to 10 pounds in one week, but Dr. March says that's usually not real fat loss; it's water.
How Much Water Weight Can You Lose? You can lose up to 20 pounds of water weight in one week after modifying your diet and starting an exercise routine.
However, over the course of the day or night, it's possible that you could lose up to five pounds of water weight, she says. So if you weighed yourself last night and woke up five pounds lighter, most (if not all) of that was water.
The length of time that it takes to lose water weight depends on how much water you're retaining, the cause of the water weight gain, and the action taken to lose it. If you have one high-sodium meal and then return to normal, healthy dietary habits, you'll likely return to your normal weight in 1-2 days.
If you're only losing water, you probably won't notice much of a difference in how your clothes fit, says Tamir. However, if you're losing fat—and inches—around your waist, for example, your clothes will feel looser and you'll know you're losing body fat.
There is no definite way though, but if your weight is fluctuating a lot and you are losing weight really quickly, it's most likely water weight. On the other hand, if you are losing weight slowly while following a healthy diet and exercise regimen, your body has started to look leaner, you are losing fat.
If you press on your skin and an indentation stays there for a couple of seconds, that's a sign you have water weight. One way to check if you're retaining water is to press on swollen skin. If there's an indention that stays for a little while, that's a sign that you could be retaining water.
If you push on your skin with your finger or thumb and your skin remains depressed, you're probably experiencing water retention. Fat cells are more springy, so the skin will bounce back. Do you feel bloated after eating?
There is no definite way though, but if your weight is fluctuating a lot and you are losing weight really quickly, it's most likely water weight. On the other hand, if you are losing weight slowly while following a healthy diet and exercise regimen, your body has started to look leaner, you are losing fat.
How much water does it take to burn fat?
Bottom Line: According to the studies, 1–2 liters of water per day is enough to assist with weight loss, especially when consumed before meals.
- You're not hungry all the time. ...
- Your sense of well-being improves. ...
- Your clothes fit differently. ...
- You're noticing some muscle definition. ...
- Your body measurements are changing. ...
- Your chronic pain improves. ...
- You're going to the bathroom more — or less — frequently. ...
- Your blood pressure is coming down.

When you cut calories and carbs for weight loss, the first place your body dips into for extra energy is glycogen (Think: stored carbohydrates), which is housed in the liver and skeletal muscles. Glycogen is usually stored with lots of water, so tapping into it releases a lot of water.