According to this article, the cholesterol used to create the gall stones comes from the liver and not dietary sources: http://www.dailymail.co.uk/health/article-1262125/Ask-Doctor-No-cutting-fatty-foods-WONT-help-gallstones.html

You're welcome, glad it was of use! I'm really not an expert, but hopefully that's something the doctor would be able to give a definitive answer for (or you can always try Google 😉

I don't know about gallstones, but I have heard that ketogenic diets are linked with higher occurrence of kidney stones.  I hope that isn't true, because kidney stones are common in my family and I am total baby when it comes to pain.

It's not snobbery. The Daily Mail is actually harmful. Read The Sun or Viz or just read porn, but jeez, the Mail!? It's for bored housewives who want to read about Cancer and Diana.'The Daily Mail, as you know, is engaged in a philosophical project of mythic proportions: for many years now it has diligently been sifting through all the inanimate objects in the world, soberly dividing them into the ones which either cause – or cure – cancer'http://www.badscience.net/2007/12/a-rather-long-build-up-to-one-punchline/

I'm interested in getting my friend to do CNS, but she recently has been diagnosed with Gallstones after having a pain attack that caused her to go to the ER. It's my understanding that people with Gallstones and especially those with their Gallbladders removed should avoid high fat diets. So I was wondering if it would be a bad idea for her to attempt to try CNS? I've thought about telling her to talk to her doctor first, but honestly, given the present ignorant state of most medical doctors, they would probably even tell her if she was completely normal that doing a CNS type diet is bad, so I can only imagine what they would say to her given her gallstones, whether or not it was actually accurate information to dissuade her.After the initial, sudden onset pain attack several months ago and the resulting ER visit, the Doctors sent her home with some Vicodin and told her she should get them removed at some point, but not necessarily an emergency if the pain goes away and she doesn't get any complications like infections, which one day the pain did recede. It's been 4 months and she hasn't had any pain since, and is reluctant for surgery because she has had surgery three times for other issues unrelated in the last year and is tired of bedrest, and missing work, so she figures she'll go as long as she can if the doctors say it's ok and if she doesn't have any recurring pain, which surprisinlgy she has not, and this is despite not eating all that healthy.So would CNS be bad idea for someone prone to or even living with Gallstones, and how about once somone actually gets their Gallbladder removed?  It's my undertstanding the high fat diets in certain individuals are what cause gallstones to develop in the first place, or am I missing something?The other question I have is, what is the other concomitant factor that causes a high fat diet to cause gall stones, because I can't imagine it is just a highfat alone, otherwise everyone on CNS would be getting them, so there must be some other factor that is at play other than just genetic predisposition? Would love some peoples knowledge on this.

Try these on for size:I do not have a gallbladder -- it was removed when I was 17, thanks to stones.I am a lacto-ovo vegetarian (people assume this is a strike against me)....I am on CNS, having incredible results, and no noticeable issues w/ health.  I've lost 23.2 lbs., thus far.  I lose at a rate of about 1-2 lbs. a week, tapering down to more around 1/2 - 1 lb. a week, now.That said, I had to adjust my fats... 1:1 did not work for me.  I eat more or less 40% fat to 60% protein (I am on a daily diet with the precise macros as the one on page 181 of the CNS book).Hope this helps.Cory

That said, I had to adjust my fats... 1:1 did not work for me.  I eat more or less 40% fat to 60% protein (I am on a daily diet with the precise macros as the one on page 181 of the CNS book).

When you said 1:1 didn't work for you, what was the reason that you decided it wasn't working? Just curious.My friend is female and weighs 160 so do you feel her following the lighter calorie meal plan might be a good choice? The fat is roughly 90-100 in most meals.Thanks for the info.

1:1 had me stalling for ~3 weeks.  So, I tweaked, and adjusted my diet to become more like that on page 181... progress came at me in an awesome way from then on.As for your friend, tweak and see what works for her, but don't bring fats too low.  Fat is HIGHLY important in this diet.Cory