I have also had times where I bought trendy supplements only to throw them away after they expired. If even a doctor does that, I can only imagine how it is for patients. Commercial diet probiotics and supplements have clear benefits: they are easily accessible, and consistent intake improves the gut microbiome, aiding bowel movements. For busy professionals, they provide psychological comfort and a good starting point for self-care. However, they have distinct limitations because these products are formulated for the 'average body.' If your metabolism has slowed due to repeated dieting or if you have a Biheo (Spleen Deficiency) constitution where you lack energy and swell easily, it’s difficult to see significant results. In particular, if the issue stems from Dameum (Phlegm-fluid/metabolic waste) or Eo-hyeol (Blood Stasis/poor circulation), probiotics alone aren't strong enough to untangle those deep-seated metabolic knots. In Traditional Korean Medicine (TKM), the reasons for weight gain differ for everyone; some have blocked water metabolism due to weak digestion, while others have stagnated Qi (energy) from stress. Since the causes vary, the prescriptions must be entirely different. Relying solely on supplements without knowing your own constitution often leads to a waste of time and money. The right choice depends on your current state. If you just want light maintenance, commercial products are fine. However, if you are struggling with the yo-yo effect and your metabolism isn't what it used to be, I recommend getting a diagnosis to find the root cause and receiving help tailored to your specific constitution.