How to stay Young and Beautiful

Series in which 500 volunteers and a team of celebrities discover how and why what we eat can change our lives. Liza Tarbuck discovers how the mere colour of some foods can fight the ageing process, how eating spinach might save one's eyesight, and how eating tomatoes could stop wrinkles. Does a stringent detox really work? And does smooth skin rely on drinking two litres of water each day?