I may have just had my mind blown...I'm not sure why I'm skeptical, but I guess it comes with the human thing...
I have been transitioning to paleo for about a week now...Total newbie here...Three days ago, I decided I'd weigh myself and keep track...Well, just figured I'd step on the scale for giggles and laughs and almost fell over to see a number a full five pounds lower!
Is this normal?
I have found that my cravings have totally shifted...I am not craving carbs or junk or really much of anything...Yesterday I had three eggs and ham (probably not strictly paleo, but I wanted to use it...it was a hamsteak) for breakfast and wasn't hungry until 8ish.
The first week is some fat, but mostly water weight. That's perfectly OK, because as your glycogen levels drop, your body retains less water too.
The cravings vanishing is the best part of Paleo, for me anyway. I'm down 30 pounds in about 4 months and RARELY crave anything, other than steak and eggs.
Keep it up, there are plenty of resources out there. Don't be surprised if weight loss stalls the second week as your water weight stabalizes, but fat loss will pick up and you'll drop 1-2 pounds a week without any of the cravings or hunger.
Yeah, this is mostly water weight. When I have a competition or something coming up, I carb load pretty heavily and will gain about 10 lbs in a week. Likewise the week after when I cut the carbs again I'll drop those 10 lbs in a week. It's mostly the water that's attached to the glycogen. So your 5 lbs in 3 days is totally reasonable. Remember a pint of water is about a pound. So you can be up or down a couple of pounds just based on how hydrated you are. On any given day I'm somewhere between 175 and 180 just depending on hydration.
I second JB's comment on water weight. I usually eat very low carb. Occasionally when I'm on vacation or something, I'll end up eating/drinking a lot more carbs, and I'll come home to find I've gained 5 lbs. But then my weight drops back to normal in 2-3 days, just from resuming my usual diet.
From my understanding, when your body stores glycogen in your muscles (which it does when you are consuming more carbs than you can use immediately), it also stores water along with it. And this comes right out as your glycogen stores are depleted, which doesn't take very long if your are consuming very few carbs!
I have to be a bit of a downer. The problem occurs when you lose only two more pounds over the next month. Seven pounds in a month is fantastic, but if you feel like you're going to keep losing a pound a day you'll lose your motivation and feel like it's no longer working for you.
Eating well is a lifelong project. Experimentation and patience are key. Maybe you've found the answer for you and everything will go smoothly, but this pace, or anything close, cannot keep going. Many paleos recommend throwing the scale away. If you begin to work out much, you'll gain muscle mass, a good thing, but the scale will be discouraging. If you decide to keep the scale as a motivator, that's fine, so long as you are prepared for days and weeks at a time where nothing happens. That's especially likely when you lose a quick five pounds of water!