I have a fairly open-minded mom who wants to lose weight and is nearly convinced that low carb paleo makes the most sense. She's almost ready to come on board despite her ridiculous oatmeal and orange juice obsessions and her fear of fat. Fat - this is where the biggest problem lies. My mom definitely has gallstones but she has no intention whatsoever of getting them surgically removed and currently believes that she keeps the pain under control by eating very little fat. She already does not eat cheese but she does consume skim milk (with her oatmeal, ugh) and cooks with a little olive oil (mostly in spray form). That's the only added fat she's currently getting outside of whatever dietary fat exists in things like lamb, chicken, beef, and fish.
Does anyone have any scientific knowledge or even N=1 experiences as to how much fat she truly would need to consume to make the longterm change to a paleo lifestyle? I'm concerned that she will eat so little fat that she will be miserable & hungry and will fall back to her old way of eating (not completely terrible but not weight-loss inducing either) because she will feel so limited. Do you really need to stop eating fat to keep gallstones under control? Am I making too much of a big deal about the need for eating more fat?
Oh btw she's 67, has bad knees, needs to lose probably 50 lbs(?), and leads a very sedentary lifestyle, if that makes any difference.
(If anyone wants to add any great reasons I could use to convince her why she should ditch the oatmeal and orange juice, I'd love it if you could add that here as well even though it is outside the main question.)
Please help! My mom is ready to make the change and I really want this to work for her. Thanks!
Edit: My mom still has her gallbladder and cannot risk having it removed. Please consider this prior to responding. Thanks.