As someone who's developed high cholesterol despite going low carb and paleo/primal I couldn't figure out what the heck is going on, so I've been doing a bunch of research.

Here are some of the notes I've compiled on the subject of cholesterol metabolism and sterol testing from lectures put out by Dr. Dayspring, a lipidologist. It goes pretty in depth... so consider this a warning

Diving Deeper into Cholesterol: Sterol Testing with Dr. Dayspring - The BJJ Caveman