Hello, I’m totally unqualified to comment but wanted to let you know that I am someone who has gallstones and hasn’t experienced any issues; but clearly everyone is different!
The BSD book warns about gallstones as a side effect so I was a little nervous prior to starting, all the more so because I hadn’t had an episode in the previous 12 months and really didn’t want to trigger one. I followed 8 weeks at a little over 800 calories per day and lost a bit more than 10% of my starting mass. Save for a very mild rumble in the first couple of weeks I have had no recurrence of gall bladder pain. I haven’t had an ultrasound since I started the diet but I am hopeful that reducing fat around the midriff can only be a good thing for keeping my gallbladder under control – I didn’t really fancy having it removed.
If you don’t currently have gallstones all I would say is if you have any pain or unusual sensations roughly below your right rib cage you should check in with your medic, and as others have said if in doubt discuss with them.
Good luck with it!
Smaus