This is my fourth time around, but I think I have it right this time - previously I ate too much protein and not enough fat. I gave up the first time because I had lost weight and felt better - doh! I thought it would stay off, but it didn't. The second and third times I gave up because weight loss slowed down and I started wanting a bit of bread here and there - that soon spiralled completely out of control, and this time I started out two stones heavier than I was the first time around.
I have the added incentive this time of having been diagnosed pre diabetic last year. This means I cannot allow myself to fail again.