Dr Christian meets 12-year-old ballet dancer Caitlin Anstis and 11-year-old Declan Garner who's been bullied because of his supersize frame.
Declan weighs in at a colossal eleven and a half stone. He's desperately unhappy about the way he looks and it's taking its toll on his quality of life - he won't even go swimming with his friends because he's so embarrassed about his size. Mum Bev is a soft touch who feeds her son whatever he wants. As they receive potentially lifesaving nutritional advice, the pair also receive a hard hitting message from American teen Alexandria, who at just thirteen years old weighs in at a super-supersized 24 stone.
Six stone Caitlin dreams of becoming a prima ballerina. But when it comes to food, she's more of a prima-donna. A simple bowl of porridge reduces Caitlin to tears. Dr Jessen knows that extreme measures are in order and has lined up a message from Mara Galeazzi, principal dancer with the Royal Ballet. Will Mara's tales of broken bones and broken dreams convince Caitlin to wake up to what the future may hold if she doesn't change her diet?
And another bunch of rowdy school kids come face to face with real human bodies as Dr Jessen warns of the impact of bad eating on our bones.
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