You did everything right. You tracked, restricted, stayed consistent - and your body still pushed back.
That's not a willpower problem. That's a physiological response.
Metabolic Adaptation: The Biology of Chronic Dieting and Weight Regain examines what actually happens inside the body when prolonged calorie restriction meets human survival biology - and why weight regain after dieting is not failure, but a predictable, measurable biological outcome.
Drawing on fifteen years of NHS critical care experience and established metabolic research, this book explains the mechanisms behind adaptive thermogenesis, appetite signalling shifts, non-exercise activity changes, and why recovery from chronic restriction is frequently slower and more complex than expected.
This is not a diet plan. There are no rules to follow.
It is a framework for understanding the biological pressures that make weight regulation far more complex than ""eat less, move more"" - written for anyone who has ever felt that their body was working against them.
Because it wasn't. It was responding exactly as it was designed to.