📝 Detailed Answer
I completely understand how you feel; I've experienced the frustration of trying to lose weight through fasting, only to end up feeling dizzy and exhausted, which severely impacted my productivity. The reality is that our bodies are remarkably adaptive; when caloric intake drops sharply, the body clings to energy reserves to survive.
In TKM, this state is often identified as Spleen Deficiency (Bi-heo, 脾虛). When the digestive and absorptive functions of the Spleen weaken, the body's efficiency in converting food into usable energy declines. This inefficiency leads to the accumulation of metabolic by-products known as Phlegm-Fluid (Dam-eum, 痰飮)—essentially 'stagnant waste' that lingers in the body.
Furthermore, if blood circulation is impaired, Blood Stasis (Eo-hyeol, 瘀血) can occur, further blocking metabolic pathways. This creates a vicious cycle: [Spleen Deficiency → Accumulation of Phlegm-Fluid → Development of Blood Stasis]. Consequently, you may find that even with a restricted diet, your body feels heavy and resistant to weight loss.
The key is not simply eating less, but restoring your body's internal processing capacity. If you are experiencing a prolonged plateau or extreme lethargy, it is advisable to examine the current state of your 'metabolic engine' through a TKM lens to resolve these systemic blockages.