The term 'eyelid dieting' is not a formal medical term but rather a colloquial expression for various online tips to reduce puffiness around the eyes, often involving short-term fasting or the use of diuretic teas (such as corn silk tea). While these methods may temporarily make the eyes appear more defined by reducing edema, the results are fleeting and often lead to a rebound effect where the swelling returns more severely. In Traditional Korean Medicine (TKM), eyelid swelling is not viewed as a simple issue of water retention. It is typically caused by Spleen Deficiency (Bi-heo) or Kidney Deficiency (Sin-heo), which impairs the body's ability to manage 'Water-Dampness' (Su-seup). When the Spleen is weak, fluid regulation fails, and when the Kidney function declines, waste products are not efficiently excreted, leading to edema in the face and periorbital area. Forcing diuresis in this state may provide temporary relief, but because the underlying cause remains, it can actually worsen the accumulation of Phlegm-Fluid (Dam-eum) and Blood Stasis (Eo-hyeol). Conversely, reducing body fat gradually through a balanced diet, moderate exercise, and healthy lifestyle habits helps restore the functions of the Spleen and Kidney. When combined with TKM treatments tailored to one's constitution—such as acupuncture or herbal formulas like Bobi-tang (Spleen-tonifying decoction) or Oryung-san (Five-ingredient powder for diuretic action)—water metabolism is normalized, and eyelid swelling naturally subsides. Rather than seeking a quick fix, focusing on restoring the body's internal balance is the most effective and fastest path to lasting results.