The OMIT Study

Only a matter of time? A comparison of caloric restriction versus time restriction of food intake
The OMIT Study
Project Status: Recruiting
Project administered by: University of Adelaide

Type 2 diabetes and cardiovascular disease are an increasing problem in Australia and around the world, and are partly linked to increased rates of obesity, together with sedentary lifestyles.

Calorie restricted diets are effective for improving health, but can be difficult to follow long term. We are interested in finding out whether combining restricting what we eat, with restricting when we eat, might have additional benefits.

We are looking for volunteers to take part in a study comparing diets that restrict the amount of food that is eaten, with diets that also restrict the time that food is eaten, on risk factors for type 2 diabetes and cardiovascular diseases over 2 months.

Participation in this study will involve 3 short visits (1 hour) to the clinical research facility here at SAHMRI and 2 overnight visits (28 hours) to the Sleep Lab of UniSA at the Magill campus over 3.5 months, as well as regular contact with researchers by phone.

Participants will receive a $1200 honorarium for their participation in the study.

You may be eligible to participate in this study if you:

  • are aged between 35 and 75 years
  • have a BMI greater than 25 kg/m2 but less than 45 kg/m2
  • are willing to attend study visits located in Adelaide and Magill, South Australia

Are you interested in taking part?

Check your eligibility

For further information please contact the research team by email:

If you would prefer to contact us by phone first, please call (08) 8128 4862 and leave a message with your name and phone number. A researcher will call you back to discuss the study with you and answer any questions you may have.

This project is funded by the National Health and Medical Research Council


The University of South Australia