Alison Hammond lost a significant amount of weight—around 11 stone—primarily through lifestyle changes including consistent exercise with a personal trainer, better nutrition by cutting out sweets and fatty foods, and increasing physical activity like walking, stretching, and yoga. Her weight loss was motivated in part by health concerns, including a pre-diabetic diagnosis and the death of her mother who had Type 2 diabetes. She did not rely on weight loss medication but focused on sustainable changes in diet and fitness. Alison emphasizes moderation rather than strict dieting, allowing herself controlled indulgences once her health improved.