Having experimented with similar alternative foods during my own dieting journey, I've experienced the common pitfall: while they provide psychological comfort at the moment, they often lead to lingering fatigue and dizziness over time. These products have clear advantages; they satisfy cravings and have lower glycemic loads and calories than standard versions, which can help reduce numbers on the scale in the short term. However, the downsides are significant from a TKM perspective. The artificial sweeteners and additives used in processing can trigger symptoms of Spleen Deficiency (Bi-heo, 脾虛), leading to indigestion and poor nutrient absorption. Furthermore, relying on these processed substitutes can contribute to the accumulation of Phlegm-Fluid (Dam-eum, 痰飮)—metabolic waste products that stagnate in the body—leaving you feeling heavy and sluggish. Ultimately, what matters more than 'what you eat' is 'how your body processes it.' While a substitute meal might feel light for some, for others, it can impair overall metabolic efficiency. I suggest first assessing your digestive health and metabolic capacity. By establishing a dietary guide tailored to your specific constitution (Sasang typology), you can manage your weight much more comfortably without relying on processed alternatives.