Diet herbal medicine is not simply a 'weight loss pill' but a process of correcting constitutional imbalances. First, looking at the Spleen Deficiency (脾虛) constitution: the spleen function is weak, so food is not properly digested and absorbed, and the energy accumulates as fat. In this case, taking the herbal medicine after meals aids digestion, thereby revitalizing internal circulation. On the other hand, the Phlegm-Retention (痰飮) constitution involves slow water metabolism, leading to waste accumulation. Taking the medicine on an empty stomach in the morning helps promote water excretion. Additionally, if Blood Stasis (瘀血) is present, some take herbal medicine that improves blood circulation in the evening. At first, I thought, 'Can't I just take it three times a day?' but the timing clearly makes a difference in effectiveness. It's dizzying, isn't it? However, the important thing is that all administration methods must be based on individual pattern differentiation (辨證). If you receive pulse diagnosis at a Korean medicine clinic, they can tell you the most suitable time and method specifically for you.