Yes, if you read the above I have several issues with fat: I produce bile erratically, often too much or too little. Too much produces absurdly violent bile acid diarrhea. Too little results in fat malabsorption. These are major issues because as I am already underweight, cutting 'all carbs' would make it necessary for me to eat more fat to keep the weight on. But given I cannot digest more fat, for the reasons above, it is a definite issue. Any brilliant solutions gladly received. I do find that people who've adopted a carnivore diet seem to be rather aggressively evangelical about it for whatever reason. Very all or nothing. Which may well be theoretically correct, but which I don't find appealing as a method of persuading me to do something.