Recruitment for the Bugs and Brains online questionnaire-only study is ongoing.

Please note that recruitment for the study component involving the collection of biological specimens has finished.

Please contact us here if you would like further information about participating or have any questions

The questionnaire-only component of the Bugs and Brains Study involves the completion of two online questionnaires. The first questionnaire asks about a variety of factors related to demographic, lifestyle, early life, and gut, mental and physical health. The second questionnaire is a detailed food frequency questionnaire which asks about your usual dietary preferences.

For further details about what participation in the Bugs and Brains study involves, please read through the Plain Language Statement (PDF 98.4 KB).