Overview

• Lucy Castle, a mother of three from Hinckley, Leicestershire, spent about £1,200 annually on cheese and weighed 16 stone at her heaviest.
• A March 2024 type 2 diabetes diagnosis prompted her to adopt the 1:1 Diet plan, which requires consuming four meal replacements daily to induce ketosis.
• Over four months on the programme she lost four stone (56 pounds), reducing her dress size from 20 to 12 without injectable therapies.
• She has since reversed her diabetes diagnosis and sustained her weight loss by eating balanced home-cooked meals, healthy snacks and occasional treats.
• Castle now serves as a diet consultant and women’s wellness coach, an evolution that has spurred broader discussion on the long-term sustainability of very-low-calorie meal replacement programmes offered by the NHS.