The Institute of Animal Reproduction and Food Research PAS in Olsztyn invites healthy (not smoking) women and men aged 18-65 with normal body weight (BMI 19-25) to participate in a scientific study on vitamin D.

The study will be conducted from November 2023 to February 2024 (7 meetings).

By taking part in this study, you will learn:

  • what is the level of vitamin D in your blood;
  • whether your body has a very good, average or poor response to vitamin D.

What do you need to do?

  • contact us to participate in the initial examination;
  • come to your appointment after overnight fasting and give your blood sample (approx. 20 mL);
  • take a personalized monthly dose of vitamin D (under the supervision of our doctor);
  • come the next day to give another blood sample (approx. 20 mL);
  • this procedure will be done once a month over a 3-month period.

In addition, by participating in the study, you will receive breakfast together with a dose of vitamin D, and get a chance to be selected for a long-term intervention study that will allow you to optimize the level of vitamin D in your body.

If you are interested in participating in the study, please contact us by phone or e-mail:

Dr. Marianna Raczyk (+48 790 567 861,
Dr. Emilia Gospodarska (+48 793 929 156,

Project leader: prof. Carsten Carlberg, e-mail:, +48 604 336 461

The study is part of the Horizon Europe ERA Chairs WELCOME2 project.


Data publikacji: 21.09.2023