New series. Sabrina Grant examines the lives of people who do not stick to a fitness regimen or seem to worry about what they eat, but do not have a problem with their weight and stay trim without trying. With the help of private detectives and secret cameras the programme examines their every move and meal. The first edition features teaching assistant and mum-of-three Hayley from Eastbourne, an unashamed chocoholic with a busy lifestyle, and Rinia from Surrey, who wonders why she manages to stay in shape in spite of her diet of takeaways.