Kate investigates the world of severe food allergies. Reports warn of surging food allergies in the UK. But are the food industry and government taking them seriously enough? Kate meets people from both sides of the debate; including the parents of 15-year-old Natasha Ednan-Laperouse, who died after eating a sandwich.

Kate looks at the deadly 2019 listeria outbreak in UK hospitals and asks how safe is our hospital food? She uncovers the science and meets a whistleblower who says cutbacks mean it could happen again.

Kate explores the murky world of miracle diet supplements and reveals the giant internet corporations making big profits exposing young teens to toxic content

Kate investigates the junk food diets of fussy-eating kids. On meeting families where young lives are at risk, she asks what's 'normal' and when parents should seek help?