One of our interviewers will call at your home to arrange an interview at a time that suits you. If you take part, the interviewer will ask you some questions and will ask you to complete online records of what you’ve had to eat and drink on 4 separate days.
Depending on your age, the interviewer may also ask whether you are willing to take part in other elements such as height and weight measurements. a urine sample and wearing a physical activity monitor.