Secret Eaters

Can siblings Jill and Stuart be able to stick to a ten-week diet regime in order to lose weight?

Anna Richardson present 24-hour surveillance of the Welwyn Garden City's Castle family's eating habits.

Dawn, Mike and Gareth want to find out why they're gaining weight.

Anna helps the Meakin family. Sue says she eats a healthy diet, Natalie doesn't think her diet is very high in sugar, while chef Dave says he's busy cooking all day so doesn't have time for meals.

The White-Oliver family doesn't know how they're putting on weight.

Ronnie believes she only eats healthy snacks; Stuart thinks his diet is balanced.