This workshop covers advanced concepts in obesity and weight management, emphasizing that sustainable fat loss depends on more than calorie restriction. It explains the role of hormones, circadian rhythm, sleep, and metabolic health in regulating fat storage and utilization. The session also addresses common fat loss myths and highlights the importance of personalized approaches based on different obesity types. It underscores that effective weight management requires a holistic, science-based strategy focused on long-term lifestyle changes rather than crash dieting.