If there's one question I hear over and over as a dietitian, it's, "I'm eating healthy, so why am I not losing weight?" It's one of the most common concerns raised by patients and clients trying to lose weight. Many are choosing nutritious foods, buying products labeled "natural" or "high protein," and following what they believe is a healthy eating pattern, yet the scale doesn't seem to budge. It can be frustrating for patients and challenging for clinicians to explain. The good news is that this doesn't necessarily mean the nutrition plan is failing. Eating nutritious foods is one of…