You are eating carefully. You are moving your body. You have done everything you were told to do, and yet the scale has not shifted in weeks. Maybe months. If this sounds familiar, you are not alone, and more importantly, you are probably not doing anything wrong. "Why am I not losing weight?" is one of the most searched health questions globally, and the honest answer is that for many people the barrier is not behavioural. It is biological. Weight regulation is not a simple