Have you ever drank pickle juice? My wife hates it. I enjoy it. And its a good thing, too. You see, I used to race bicycles and go on long 100 mile + rides during the summer. It turns out that when you sweat too much, your body becomes less effective and can actually shut down.
Drinking pickle juice is an effective way to rehydrate.
Here is a quick look at what water weight is, why your weight fluctuates during the early days of weight loss, and how to avoid dehydrating to the point of needing pickle juice to sustain you.