📝 Detailed Answer
To be honest, I also grab Subway when I'm busy. However, I've noticed that I occasionally feel bloated or lightheaded afterward. Even with all my medical studies, managing one's own body is never simple.
Subway has clear advantages: you get plenty of dietary fiber from fresh vegetables, and choosing low-sugar sauces helps with glycemic control. However, there is a downside. An excess of raw vegetables can be counterproductive for those with 'Spleen Deficiency' (Bi-heo, 脾虛), characterized by weak digestive functions. This can lead to a cold abdomen, causing bloating or diarrhea.
If you cannot give up bread entirely, I recommend choosing whole-grain options and keeping sauces simple, such as olive oil and black pepper. If you struggle with 'Phlegm-Fluid Accumulation' (Dam-eum, 痰飮)—where metabolic waste builds up and makes the body feel heavy—selecting lean proteins like chicken breast or turkey will be much more beneficial for your internal circulation.
Ultimately, the key is your 'digestive status.' Those with strong digestion can opt for light salads, while those with a cold interior should combine bread with warm-natured ingredients. If you are curious about your specific constitution, please visit the clinic so we can determine the best approach for you together.