Many people fail their diets not because of a lack of willpower, but because of their underlying physiological state. Traditional Korean Medicine (TKM) does not focus solely on calorie restriction. Instead, it focuses on clearing accumulated metabolic waste—specifically 'Dam-eum' (phlegm-fluid retention) and 'Eo-hyeol' (blood stasis). When these waste products obstruct metabolic pathways, weight loss becomes difficult regardless of how little one eats. For instance, patients with 'Bi-heo' (Spleen deficiency), characterized by weakened digestive functions and an inability to generate sufficient energy, often experience extreme fatigue and a rapid 'yo-yo' effect when fasting. In such cases, a customized prescription is necessary to replenish vital energy while simultaneously boosting metabolism. Therefore, it is not a matter of choosing one over the other. Think of herbal medicine as an efficient tool layered upon the foundation of diet and exercise. I highly recommend first assessing your current constitutional state and then utilizing tailored herbal support to achieve sustainable health.