I recall a time when I filled my freezer with chicken breast out of pure motivation, only to feel dizzy at the mere sight of it later. Let’s look at the pros and cons of a chicken breast diet from a Traditional Korean Medicine (TKM) perspective. First, the high protein content is great for preventing muscle loss, and it simplifies calorie tracking. However, chicken meat naturally has a "warm" property. If you naturally have a lot of internal heat, consuming too much can cause "heat flushing" (sang-yeol-gam) in the upper body. Because it is a dry cut of meat, long-term consumption can deplete your "Body Fluids" (jin-yeok), leading to internal "Dryness" (jo). Caution is especially needed if you have symptoms of "Spleen Deficiency" (bi-heo). When Spleen function is weak, the body struggles to absorb high-protein foods efficiently; instead, they transform into "Phlegm-Rheum" (dam-eum)—metabolic waste that causes the body to feel heavy and swollen. Furthermore, for those with a "Blood Stasis" (eo-hyeol) constitution where "Qi and Blood" circulation is stagnant, this dry diet can exacerbate constipation. There is no single food that is perfect for everyone. Pay close attention to whether you feel comfortable or bloated and fatigued after eating. If it's the latter, don't force yourself to stick to chicken breast. Finding a diet that compensates for your constitutional weaknesses is far more efficient. It is wise to adjust your cooking methods or diversify your ingredients to match your digestive strength.