You're asking about the constitution-based diet process, and as a Korean medicine practitioner, I've experienced this myself. 'Constitution' in Sasang constitutional medicine refers to inherent physiological and pathological characteristics—why some people gain weight from the same food while others don't. The first step is accurate constitution diagnosis: at the clinic, we use questionnaires, pulse diagnosis, and abdominal examination to determine whether you are Taiyang, Taiyin, Shaoyang, or Shaoyin. For instance, Shaoyang types tend to have excess heat and fast digestion; if they skip meals, they may suffer from hyperacidity or headaches. Starting without knowing your constitution often leads to yo-yo dieting or harming the body—I once guessed my constitution incorrectly until a proper diagnosis showed me I was wrong. The second step is constitution-specific diet and lifestyle management. Taiyin types have relatively strong spleen function but a tendency for liver qi to rise, so they should reduce greasy and sweet foods and consume moderate protein. In contrast, Shaoyin types often have spleen deficiency with poor digestion and edema from cold foods; warm soups, stews, and steamed vegetables are best, while raw salads can be harmful. In Korean medicine, 'damaging the spleen-stomach leads to phlegm-rheum accumulation and weight gain'—a diet mismatched to your constitution builds up waste in the body. The third step involves herbal medicine and acupuncture/moxibustion. Based on your constitution and current condition (e.g., blood stasis, phlegm-rheum, qi stagnation), we prescribe formulas that harmonize organ qi so the body naturally rebalances—not just appetite suppressants. For severe spleen deficiency, we use spleen-tonifying herbs to normalize digestion; for excess phlegm-dampness, we focus on phlegm-dispelling methods. Acupuncture stimulates appetite or satiety points, while moxibustion boosts metabolism in cold-constitution types. This is not a one-time event but a 4- to 8-week process with gradual adjustments based on your constitution. Finally, lifestyle habit correction is essential. Each constitution responds differently to exercise intensity and sleep patterns—Shaoyang types do better with strength training than cardio, while Shaoxing types may benefit from gentle walks. I always advise patients not to ignore their body's signals. Knowing your constitution transforms dieting from a battle into a natural process. Rather than aggressive goals, the key is to strengthen your body's foundation from a Korean medicine perspective.