I also wondered at first, 'Can herbal medicine really make me lose weight?' But traditional Korean medicine focuses not just on reducing weight, but on correcting bodily imbalances. For example, Spleen Qi Deficiency (Spleen Qi Xu) impairs digestion and metabolism; strengthening the spleen with herbs naturally boosts metabolism. Accumulated wastes like Phlegm-Fluid (Tan Yin) or Blood Stasis (Yu Xue) can also block circulation and hinder weight loss, and herbal medicine helps remove these residues. Advantages include: first, stabilizing appetite—many people experience reduced hunger and fewer binge urges. Second, raising the metabolic rate so that even with the same food intake, energy expenditure increases. Third, because the constitution itself improves, rebound weight gain (yo-yo effect) is less likely after stopping the herbs. Disadvantages are also clear: effects are not immediate—at least 2–3 months of consistent use are needed to notice changes, and individual responses vary widely. If constitution diagnosis is inaccurate, there may be no effect or even side effects like digestive discomfort or heartburn. Moreover, relying solely on herbs without changing lifestyle habits makes yo-yo effect difficult to avoid. Cost can also be a burden. Ultimately, herbal medicine is one tool for weight management. Especially if you struggled with rebound weight gain after Western diet medications like Wegovy or Saxenda, slowly transforming your constitution with herbs may offer more lasting results. The key is to get an accurate diagnosis of your current body state and receive a tailored prescription. I recommend consulting a specialist to consider side effects and individual constitution differences before deciding.