But you know what Laura, sometimes when we change things up our bodies are not use to it and we lose. I believe our bodies get use to eating the same foods and calories every day so its use tou the comfort zone we set up for it. We have to keep shakening it up, so it does not get use to the normal. I will tell when I started backsliding one day I ate 4 hersheys chocolates with almonds ( the full size bars) in one day. I was getting so depressed, the next morning after that chocolate feast and expected to of gained weight but instead I had lost 1.9 lbs. I still dont understand it. I promised myself I would never do that again. But it goes to show when you change things up ( like the 5:2 diet) our bodies will drop the weight.