I just joined this Australian cancer council study (not fabulous quality I know as it’s a recall study) but anyone over 40 who hasn’t had cancer can do it requires you to fill in a questionnaire might take an hour and they’ll send you a saliva swab kit.
There was lots of dietary questions in the study in fact a lot of dietary questions along with family history and health questions. Any Aussie’s here happy to participate here is the link https://www.abcstudy.com.au/?gclid=EAIaIQobChMI9uScnO2P2gIVWAwrCh0brw1eEAAYASAAEgIK9_D_BwE&gclsrc=aw.ds
I do hope they get some good information from the study as it would be good to see some progress in cancer prevention and treatment