My friend, Robert Seidman, who lost 80 pounds and has kept it off for 4 years went on a rant about a woman he overheard in Starbucks. The woman claimed to have lost 7 pounds in a week, yet she was eating a Mocha and pumpkin scone. Basically he guessed that she was going to gain back 6 pounds with the sweets because she would be rebalancing her system.
He talks about how you need to burn more calories than you consume and that if you lose 7 pounds in a week probably only one of those pounds is fat and 6 are water. This is the science of it he talks about and goes into much more detail.
Here’s something I don’t hear much about which I know scientifically to be a fact (you can look it up!).
1. When you are consuming less calories than you burn, your body will start to burn fat 2. When you are restricting calories/burning fat, you eliminate more fluid (water weight) from your system than when your calories consumed vs. calories burned is balanced.
First off, congrats to your friend for losing so much and keeping it off! Second, 7 pounds in one week is a lot! A healthy weight loss is 2 pounds per week. I've heard people talk about water weight, but never really understood, so thanks for the info!