Here is an interesting article explaining the different types of LDL cholesterol.  I read about pattern A and pattern B LDL in the past.  But there are 4 types of LDL cholesterol.

Basically we've been told that HDL is good and LDL is bad.  But, there is LDL that is very bad, LDL that is not so bad and LDL that is neutral.

The problem is that it is currently too expensive to test for the different types and is generally only done is research laboratories.

But, a high sugar high simple carbohydrate diet is thought to create that bad type of LDL even though the total LDL will be lower if it is low fat.

Bad cholesterol: It’s not what you think