Even as a practitioner, I often find myself hesitating in front of the Subway menu; the temptation of 'Sweet Chili' or 'Ranch' can be quite overwhelming. However, as a TKM specialist who has navigated the ups and downs of dieting, I can offer a clear guide on sauce selection. First, simple dressings like olive oil, salt, pepper, and red wine vinegar are highly beneficial. Not only are they low in calories, but they also prevent the accumulation of 'Phlegm-fluid' (Dam-eum), which refers to unnecessary metabolic byproducts in Traditional Korean Medicine. In particular, the acidity of vinegar aids digestion and stabilizes blood sugar fluctuations. On the other hand, you should be wary of creamy or sweet sauces. Their high sugar and fat content easily produce 'Damp-Phlegm' (Seup-dam), a sticky waste product within the body. When Damp-Phlegm accumulates, the body feels heavy and becomes prone to edema (swelling), which significantly hinders weight loss efficiency. Ultimately, the key is tailoring your diet to your body's constitution. If you frequently experience poor digestion or low energy due to 'Spleen Deficiency' (Bi-heo), you should avoid combining cold raw vegetables with heavy, irritating sauces. I recommend choosing sauces that highlight the original flavors of the ingredients to help your body regain its natural balance.