I have also spent a lot of time at Subway while managing my own diet. However, I've experienced bloating and discomfort from simply assuming that piling on vegetables is always healthy. Based on those experiences, here is my guide for you. The advantages are clear: these sandwiches are rich in dietary fiber, and you can choose lean proteins like roast chicken or turkey over processed meats. With a light touch on the sauces, it becomes an excellent meal. However, there are a few points to consider. First, I recommend asking to 'scoop out the bread' to reduce carbohydrate intake. More importantly, from a Traditional Korean Medicine (TKM) perspective, you must be mindful of 'cold properties.' For those with Spleen Deficiency (Bi-heo, 脾虛), consuming excessive amounts of raw, cold vegetables can impair digestive power, potentially leading to edema or lethargy. Specifically, if you have a constitution that is naturally cold or prone to the accumulation of Phlegm-Fluid (Dam-eum, 痰飮), cold sandwiches may actually hinder your metabolism. The same applies to those with Blood Stasis (Eo-hyeol, 瘀血) who experience poor blood circulation. Ultimately, the right answer depends on your individual body condition. Rather than blindly following popular combinations, prioritize whether the meal leaves your stomach feeling comfortable. If you are curious about a diet tailored to your specific constitution, please feel free to visit the clinic so we can discuss it together.