I have no idea whether eating saturated fat leads to high cholesterol, or whether high cholesterol leads to atherosclerosis. Imo I don't need to ponder these questions because, again imo, blood glucose trumps all. In other words, if when I have my next full blood test in January 2018 my A1c is down but my LDL and even my triglycerides are up, I plan to continue my low carb diet regardless. It seems absolutely clear to me that too much bg is harmful, and indeed has already been harmful to me, whereas the whole cholesterol question is controversial. My GP will not agree, but then my GP is contributing nothing to the management of my diabetes - no meter, no strips, no helpful advice, no encouragement, no Metformin, no acknowledgment even that there is a problem.