To give you a direct answer: yes, it is possible. However, this is not a magical process where you lose weight simply by staying still; rather, it utilizes the principle of artificially boosting the body's basal metabolic rate (BMR).

In Traditional Korean Medicine (TKM), weight gain is not seen merely as a result of overeating, but as a consequence of accumulated metabolic waste known as Dam-jeok (phlegm accumulation) or a state of stagnant energy metabolism. In particular, if you are in a state of Bi-heo (Spleen deficiency), where digestive functions are impaired and energy cannot be utilized efficiently, the effectiveness of exercise alone may be limited.

However, there are a few precautions to keep in mind when relying solely on medicine without exercise:

• Risk of Muscle Loss: Since both fat and muscle can be lost, maintaining adequate protein intake is crucial.
• Overcoming Plateaus: As the body adapts to the medicine, metabolic efficiency may decrease, requiring step-by-step adjustments to the prescription.
• Potential for Yo-yo Effect: If the body returns to its original low-metabolic state after stopping the medicine, weight regain can occur easily.

Therefore, rather than forcing extreme fasting or rigorous exercise, I recommend first identifying your constitutional issues to effectively 'flip the switch' on your metabolism.