Many people assume that oatmeal bread works simply because it's a 'healthy grain,' but the core mechanism is actually about the 'speed' of absorption. White flour used in conventional bread is digested and absorbed very rapidly, causing a sharp rise in blood glucose. This triggers a surge of insulin, which quickly stores the excess energy as fat. In contrast, the high fiber content in oatmeal slows down this process. From the perspective of Traditional Korean Medicine (TKM), excessive consumption of refined carbohydrates often leads to the formation of 'Dameum' (痰飮), or phlegm-fluid retention. This refers to a state where metabolic waste is not properly discharged and remains stagnant in the body, leading to a sluggish metabolism and a feeling of heaviness. It is important to note that individuals with 'Bi-heo' (脾虛), or Spleen Deficiency (impaired digestive function), may experience bloating or dizziness if they suddenly increase their intake of whole grains. Therefore, it is crucial to adjust the portion size based on your personal digestive capacity rather than following the trend blindly. Ultimately, diet bread is not a magic tool for weight loss. Instead, it acts as a supportive aid that prevents 'false hunger' by stabilizing blood sugar fluctuations. We recommend assessing your body's current metabolic state before finalizing your dietary plan.