alypaly The five F risk factors are the most common group of gallstone sufferers, this does not however mean that others don't suffer from them, it just means that time and time again through statistics and studies this group is the highest risk group. All doctors will tell you this, it is taught in medical schools around the world.
en.wikipedia.org/wiki/Gallstone
www.drhoffman.com/page.cfm/140
www.besthealthmag.ca/get-healthy/a-z-index/gallstones
www.ehow.co.uk/how_5641942_having-gallstone-attack.html
www.medicalnewstoday.com/articles/6380.php
www.umm.edu/patiented/articles/who_gets_gallstones_gallbladder_disease_000010_4.htm
It is not a myth, it is based on sound medical evidence. There are hundereds of medical papers, articles and studies that back this evidence up. There are other risk factors, such as cirrhosis, crohn's disease, Certain blood disorders, bariatric surgery, etc. However the risk group which I mentioned are the group which this disease most commonly presents itself.
For the record, I am in my 30's and slim.
Diet does not do anything if you have big stones as I did. Eating an apple would set off an attack for me, it did not matter what I ate the last 4 months prior to my surgery.