The answer is all of the above and more.

The cholesterol in your blood is manufactured by your liver, it does not pass through your intestinal wall from the food you eat into your blood. So there is a problem with your liver before the problem shows up as high cholesterol readings in your blood. You will not likely find AMA supported information to back this. The food industry will actively refute this.

Read about homocystiene.

Food is grown it does not come from a factory. If you eat your food the way it grows naturally without chemical intervention and processing by man(corporations) you will avoid many problems. Eat your food as close to the way it grew as possible.

Drugs are poison and cannot make you healthy. Only you can make you healthy. The drug industry will actively refute this.