I used to rely on convenience store chicken breasts and salads when I was busy, thinking that as long as I hit my calorie targets, everything would be fine. However, over time, I felt sluggish and experienced brain fog. The reason was simple: everyone's digestive capacity differs, and adhering to a standardized diet can significantly lower metabolic efficiency. In Traditional Korean Medicine (TKM), this state is referred to as 'Bi-heo' (脾虛), or Spleen Deficiency, where the function of the Spleen is weakened, hindering proper nutrient absorption. If you push through a diet consisting primarily of processed foods during this state, it is easy for 'Dam-eum' (痰飮)—the accumulation of metabolic waste or phlegm-fluid—to build up. This creates a vicious cycle where remaining residues further slow down your metabolism. Office workers under high stress are particularly prone to 'Eo-hyeol' (瘀血), or blood stasis, where blood circulation becomes stagnant. In such cases, focusing on ingredients that promote blood flow is far more effective than blindly cutting calories. To help you understand the difference, I have summarized it in the table below: | Category | Convenience Store Diet | Personalized Meal Management | | :--- | :--- | :--- | | **Pros** | Zero prep time, clear calories | Nutrition tailored to constitution | | **Cons** | Processed additives, limited nutrients | Tedious preparation process | | **Recommended For** | Those establishing initial habits | Those facing yo-yo effects or plateaus | | **Physical Impact** | Potential strain on digestive organs | Advantageous for recovering metabolism | | **Sustainability** | High due to convenience | High when personal tastes are reflected | There is no single 'correct' answer. However, if you are currently experiencing poor digestion or a severe lack of energy, I recommend starting slowly with warm foods that suit your specific constitution rather than relying on convenience store meals.