Healthy Weight (The Generic Approach): This usually refers to just getting your BMI into a "normal" range. People often achieve this by "Dirty Bulking"—eating fast food, sugars, and excessive fats. While the scale goes up, most of that weight is visceral fat, which leads to sluggishness and "skinny-fat" syndrome.
The Right Weight (The Functional Approach): This is Lean Mass. It’s the weight that comes from muscle fiber hypertrophy and increased bone density. It’s weight that makes you stronger, faster, and more athletic. To gain the right weight, your caloric surplus must be fueled by high-quality proteins and complex carbohydrates, not just empty calories.