https://www.health.harvard.edu/heart-health/lipoproteina-an-update-on-testing-and-treatment
As we advance as a civilization, and as the absolute numbers of people doing research continues to climb, we are learning more, including, regrettably, that we've been wrong all along. It happened with fat. Fat was to be avoided, and now we understand that we absolutely do need, and must ingest, several kinds of fat that we cannot produce in the quantities we need. Just as an example, fats are needed to get some vitamins and nutrients across lipid membranes surrounding cells and their resident mitochondria. Who knew!?

The science behind lipoproteins and what the numbers mean for individuals is still very much fraught. If you'd like me to suggest a place to begin, not to end,,,,,to begin....to learn up-to-date science, and what the listener-you should take away from each video he makes, look to Dr. Nick Norwitz on YouTube. He has genetic problems and is a hyper-lipid body owner, genetically. He's Harvard and Oxford trained, MD and PhD respectively. He's young, energetic, great personality, humble (with just the right amount of cockiness a young MD ought to present with), and he is very active in reading and digesting what others say in similar channels on YouTube or what bonafide researchers publish in the journals. Also, a hearty shout-out for Dr. Gil Carvalho on his channel 'Nutrion made simple', on YouTube. he's not afraid to review other influencers and then call them out, nicely, but knowledgeably, and he always invites a dialog or a meeting with them to allow them to rebut.