I’m now 3 weeks into the BSD. Have to admit I’ve really struggled to eat a lot of the foods listed in the book but have adapted the diet to suit me whilst still remaining low carb. My ideal weight is apparently 12st 7 and at the start of this I weighed in at a hefty 19st 7. I lost 10lbs after week 1, 5lbs after week 2 and now another 10lbs at week 3. Usually I would say that is great but a bit confused about some of the sudden weight loss. During week 3 I weighed myself on Wednesday and I had lost 2lbs, by Friday another 1lbs so 3 in total but by official weigh in day on Monday I had somehow lost another 7 pounds taking it to 10lbs in a week. Ordinary I would put this down to a great week and great progress but unsure how I suddenly lost half a stone in 3 days when still eating the same as I had previously. Does anyone know if there could be some explanation for this?.