S1, E6: Ronnie Derrett and Stuart Ellaway from Farnborough want to solve the riddle of why they're putting on weight. Ronnie says she cooks fresh meals most evenings and only snacks on healthy foods, and Stuart thinks he eats a healthy balanced diet. Will revealing the truth of what they're really eating be the eye-opener they need to stick to a ten-week healthy eating regime designed to help them win their battle with the bulge?