I once hoarded boxes of chicken breast out of sheer determination, only to end up feeling dizzy and losing my appetite just from the smell. Based on that experience, I can say that a chicken breast-focused diet has very clear pros and cons. From a nutritional standpoint, it is a cost-effective and efficient source of protein, and its low fat content is ideal for body fat management. However, the drawbacks are significant. In Traditional Korean Medicine (TKM), a state of weak digestive function is referred to as 'Spleen Deficiency' (脾虛). For individuals with this condition, consuming only dry, lean meat can place excessive strain on the digestive system. Undigested protein can easily transform into a metabolic waste product known as 'Phlegm-fluid' (痰飮). This 'residue' from clumped body fluids causes the body to swell and feel heavy, which is counterproductive to weight loss. Furthermore, if you have 'Blood Stasis' (瘀血)—stagnant blood circulation—an extreme diet may further block your 'Qi' (vital energy). Ultimately, 'compatibility' with your own body is the most important factor. Rather than blindly following trends, you should first assess your digestion and energy levels. Weight loss is more effective when your digestive system is comfortable. If you experience persistent bloating or fatigue despite dieting, it may indicate a blockage in your body's circulation. In such cases, I recommend visiting a TKM clinic for a professional consultation.