From a Western medical perspective, Subway sandwiches are often recommended for dieting because they allow for calorie control and provide a high volume of vegetables. However, TKM considers not only calories but also the thermal nature of food and the digestive process. The primary concern is that the sandwiches and accompanying drinks are often cold. Cold foods can deplete the energy of the Spleen (脾臟), the organ responsible for transforming and transporting nutrients. When this function is impaired, it leads to a state known as Spleen Deficiency (脾虛). In this state, undigested food and fluids accumulate in the body, manifesting as Phlegm-Fluid (痰飮) or Dampness (濕). Paradoxically, this can lead to a body that swells easily, feels chronically fatigued, and becomes prone to regaining weight quickly even after initial loss. This explains why the same diet yields different results for different people. Rather than focusing solely on caloric numbers, it is essential to understand your own constitution. By visiting our clinic, we can design a personalized dietary plan and herbal medicine treatment tailored to your specific constitutional type.