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Take part in our study looking at the effect of exercise on vitamin D status

We need physically active volunteers to help us research how exercise can improve vitamin D levels and overall health.

Does exercise improve health through releasing vitamin D ‘trapped’ in our body fat?

Evidence suggests that regular exercise helps us maintain vitamin D through the winter months, and that this could help prevent vitamin D deficiency.

We're looking for physically active volunteers to take part in a study to understand this process. Our aim is to understand how an active lifestyle maintains levels of vitamin D, and other molecules, in the blood.

Take part in our research

This study will run from October 2021 to March 2022.


We are looking for men and women who:

  • are aged between 25 and 65
  • have a BMI under 25 kg/m2
  • do more than 2.5 hours of exercise per week
  • are available for testing at regular intervals between October 2021 and March 2022.

What’s involved in the study

We will take vitamin D measurements from you on 6-7 occasions.

Some measurement sessions will be very quick, but one will take up to a few hours.

Each measurement session has a degree of scheduling flexibility. We will work with you to make sure your participation is as convenient as possible.

Measurements will be taken at our University of Bath campus.

What you'll get

If you take part, you will receive:

  • £50 of Love2Shop vouchers
  • a personalised report containing in-depth body composition, physical activity and dietary analysis data
  • VO₂ max and fitness data from your exercise test

We will reimburse you for all reasonable travel expenses, and food and drink after each visit that requires arriving at the University fasted.


Only the lead researcher, Dr Oliver Perkin and Chief Investigator, Professor Dylan Thompson will have access to the personal information you provide, and all records will be treated as confidential, including personal contact details.

This study has received ethical approval. 1

Contact us to sign up

If you'd like to sign up or ask questions then you can contact us.

1 This study has been approved by an NHS Research Ethics Committee (REC ref: 18/WA/0392).