Lorna Weightman (30), fashion blogger
"Last year, I tried the Dukan Diet to lose a few pounds; I bought the book, read the recipes and was confident it would work for me. I lost about four pounds very quickly, but the diet was just not sustainable for me.
"I felt really lethargic as I had reduced the amount of bread I was eating and not being able to eat fruit in the first week or two just didn't make sense to me. I felt unhealthy."