Will following the viral Starbucks 'diet drink' recipes actually help? What menu items would you recommend?

I once relied on cold Americanos every day until I struggled with indigestion and dizziness myself. Low-calorie recipes that use sugar substitutes and oat milk are indeed effective for blood sugar management and reducing caloric intake. However, in Traditional Korean Medicine, excessive consumption of cold drinks can lead to Spleen Deficiency (Bi-heo). When the Spleen's digestive function weakens, the body tends to swell and lose energy, eventually producing 'Phlegm-rheum' (internal metabolic waste). This stagnation can change your constitution into one that resists weight loss. On days when you have high internal heat and feel energetic, sugar-free Americanos or teas are fine. But if you feel sluggish or have poor digestion, I recommend opting for warm herbal teas or a Grapefruit Honey Black Tea with minimal syrup. Protecting your internal warmth to support the circulation of Qi and Blood (Gi-hyeol) is far more beneficial for sustainable weight loss than chilling your digestive system. True dieting begins with preserving your body's natural digestive and circulatory power.