You are absolutely right, Sumo.
Whilst I didn’t have a great deal of weight to lose, I was very discouraged at not knowing how to start to do it – other than starve myself which I knew would not be sustainable, and might take a long time of considerable agony, bad temper, and fails.
So I think the best benefit of the BSD is understanding a bit better how my body works, and seeing it in action (particularly with the reduction of waist size) as the hormones change how we get our energy and the visceral fat melts away.
I can now ‘choose’ how I want to eat. I notice that at times I ‘want’ the mouth feel of carbs (why is this? Do I crave a sugar rush?) but I do understand that this would be a temporary win, and that eating something which is less carbs but more protein/fat will in the end be more satisfying.
I see no reason why, having learned how the body works, people who have more pounds to lose can’t continue on their journey and achieve their desired weight after a period of time. It might take a sustained period of BSD at low calories and then a brief ‘rest’ with higher calories (but still no refined carbs) to ‘reboot’ the losses, but why would it not work longterm?