Q. I've heard that sandwiches like Subway are good for dieting. Specifically, why are they helpful?

In my own experience, I once tried extreme fasting for weight loss, but it only led to dizziness and a sharp decline in productivity. Based on those trials and errors, I can tell you that 'what' and 'how' you eat is far more important than simply not eating. From a modern medical perspective, the core of a diet is glucose management. Whole grains and the dietary fiber from plentiful vegetables slow the absorption of sugar, preventing excessive insulin secretion and creating an environment where less fat is stored. In Traditional Korean Medicine (TKM), we view this through the lens of 'Dam-eum' (痰飮), which refers to metabolic waste or phlegm-fluid accumulation caused by poor fluid metabolism. Consuming greasy foods or excessive sugars leads to the buildup of Dam-eum, making the body feel heavy and prone to edema (swelling). A diet consisting of fresh vegetables and high-quality protein reduces the digestive burden and boosts energy, even for those in a state of 'Bi-heo' (脾虛), or Spleen Deficiency. When the Spleen is deficient, nutrient absorption efficiency drops, leaving you exhausted if you fast; thus, a balanced diet serves as a vital supplement. However, the choice of sauce should vary based on your individual digestive capacity. No matter how healthy the ingredients are, excessive use of sauces that don't suit your constitution can lead straight back to the creation of 'Dam-eum.' It is best to consider your current bodily state to determine the most efficient dietary choices.