People say I should consume protein shakes or supplements while dieting. How exactly do they work to help with weight loss?

I recall my own struggles with dizziness from excessive fasting in the past; understanding how protein works can help you avoid such mistakes. Protein is essentially an 'expensive fuel' for the body, burning 20-30% of its caloric value just during digestion—a process known as Diet-Induced Thermogenesis. From a Traditional Korean Medicine (TKM) perspective, this aligns with addressing Spleen Deficiency (脾虛). When Spleen function is impaired, food transforms into 'Phlegm-Fluid' (痰飮)—a form of metabolic waste—rather than energy, leading to weight gain. Quality protein supports the Spleen Qi to prevent this accumulation. Furthermore, firm muscles are essential for healthy blood circulation; a lack of muscle can lead to 'Blood Stasis' (瘀血), which often causes edema and obesity. While protein supplements help defend your basal metabolic rate, be mindful of synthetic additives. Since the ideal intake method depends on your specific constitution—such as your digestive capacity or internal heat levels—it is better to identify where your body's energy is stagnated rather than simply following general trends.