Alex and John

Trisha Goddard and Dr Amir Khan help two more people in desperate need of a life-changing, or even life-saving, intervention. Single mum Alex has a waistline that's weighing her down, and it's not just what she eats but how much she eats, that's the problem. John's high-carb, high-fat diet has left him low on self-esteem. With fixing his physical and mental health on the menu for the You Are What You Eat team, they need to serve up their biggest plan yet.