Effects of kiwifruit consumption on energy expenditure, blood sugar and appetite after eating

We are keen to find out how individuals with elevated fasting blood sugar (pre-diabetes) respond to kiwifruit consumption.

Golden kiwifruit hanging from the tree

This study will help us to understand how kiwifruit, a commonly consumed food in New Zealand, influences the way we process foods after eating. This study will also explore whether Chinese (who are more susceptible to type-2 diabetes at the same BMI) and European Caucasian responds differently to kiwifruit consumption. Learning how these mechanisms work could inform future dietary guidelines, which may help people avoid weight gain and poor metabolic health outcomes (e.g. type 2 diabetes).

What's involved?

You will be required to come to the Human Nutrition Unit (Mt Eden) for an initial screening visit (approximately 1 hour) to assess your eligibility. If you are eligible, we will further invite you to attend a 30-minute body composition scan, and two 5-hour Study Visits.

During the Study Visit, we will provide you with test meals, and measure your energy expenditure, blood sugar, and appetite after eating.

Who can participate?

You may be eligible to take part in this study if you fulfill the following criteria:

  • Between 18 - 60 years old.
  • Have BMI between 24 - 40 kg/m2 (overweight / obesity).
  • Have elevated fasting blood sugar level, but not diabetes. We can test this for you at no cost. 
  • European Caucasian or Asian Chinese (more widely, individuals from mainland China, Singapore, Malaysia, Hong Kong and Taiwan). 
  • Are willing to have blood taken as part of a clinical study.
  • Can eat a wide range of foods (not vegetarian/vegan).

What you’ll receive?

You will receive your individual blood test results, body composition results and up to $170 shopping vouchers as koha.


If you like to express your interest in participating, please complete this online Pre-Screening Questionnaire: 


Our research staff will contact you if you appear to be eligible based on the information you submitted.

For further information please read the participant information sheet below before contacting the Human Nutrition Unit.

Email: HNU_synergy@auckland.ac.nz
Phone: +6496301162

Statement of ethical approval

This study has received ethical approval from the NZ Southern Health and Disability Ethics Committee (21/STH/231).