School of Psychology

The study takes place at the Human Appetite Research Unit, University of Leeds and consists of a short screening session and 6 clinical visits in the morning (3-4 hours each).

What is the purpose of this study?

Research has shown that the types of food and beverages we consume may have an impact on how we feel both physically and mentally. This project aims to examine some aspects of this relationship. In particular, this study will look at the immediate and medium-term effects of consuming foods sweetened with sugar or sweeteners on blood markers, body sensations and consumer acceptance.

Why have I been chosen?

You have been contacted because you have expressed an interest in our research. We are recruiting healthy men and women between the ages of 18-60 years to take part in this study. We will be recruiting up to 68 British volunteers in total. Only adults with a Body Mass Index (weight in kg divided by height in meter squared) between 25 and 35 kg/m2 will be included. At the screening visit, we will measure your height and weight to ensure that this criterion is fulfilled. Most of the criteria are assessed based on an interview and questionnaire.

Do I have to take part?

No, it is up to you to decide whether or not to take part. If you do decide to take part, you will be given an information sheet to keep and asked to sign a consent form. You are still free to withdraw at any time without giving a reason.

What will happen to me if I take part?

If you take part, you will be asked to attend the Human Appetite Research Unit (HARU) at the University of Leeds on 7 occasions spaced apart with 3 x 2-week periods of at home testing involving consumption of a study food. The 7 visits correspond to an information/screening session, and 6 study days scheduled in the morning. The total duration of the study excluding the information and screening session is a minimum of 70 and a maximum of 84 days (3 separate study periods of 2 weeks spaced about 2 weeks apart). Upon completion of the study, participants will receive a £200 honorarium as well as body composition feedback, if requested. 

  • Contact: Dominic O'Connor Email: Study phone number: 07927986003
  • Ethical approval reference number: PSYC-127: 19-Nov-20
  • Closing date for participants: 01 December 2021