I have just found this YT health channel, and I find it excellent. It is done by Dr. Sten Ekberg, a used to be Swedish decathlon olympicon. I am not sure what kind of doctor he is (or if he is a real doctor at all, I think chiropractor) but I agree with most of his videos. He eats a bunch of butter, eggs, bread, etc. in a short period of time and checks his blood, then explains what happened or not and why. His take on cholesterol is on point. The bottomline of this video below is that in a Korean study looking at 12 MM people in a decade, the less death occurred with cholesterol levels of 200-240. Your doctor wouldn't want you to know...
The Korean study from the second video: https://www.nature.com/articles/s41598-018-38461-y "In the spline analysis, the TC ranges associated with the lowest mortality were approximately 200–240 mg/dL, except for men at 18–34 years (approximately 180–220 mg/dL) and for women at 18–34 years (approximately 160–200 mg/dL) and at 35–44 years (approximately 180–220 mg/dL)." So this study answers the question, what cholesterol range should we aim for. 200-240 is the one where you less likely to die, all cause mortality. (for younger men 180-220) Thus when your doctor is trying to put you on statin when you have 230 at age 50, they are doing a disservice to your health. For really old people the relationship is inverse, the more cholesterol you have the less likely you die. Quote from the Discussion part: "a long term follow-up study in a Japanese-American population showed that individuals with low cholesterol levels maintained over a 20-year period had the worst all-cause mortality, and concluded that reverse causality was unlikely to account for the higher mortality associated with low cholesterol entirely"
This book was an eye opener for me and my wife. Dr had her on statins and she felt like she was dying. Stopped taking, started working with trainer and lost about 20 lbs and hasn't felt better in years (68 yo, looks mid 50ish). The Great Cholesterol Myth
Another experiment involving eating a large amount of eggs: One comment points out however that the experimenter not only changed his diet but also his training regime.