I remember reading a study several years ago that indicated that for those shifting from SAD to LC, about 1/3 saw their blood lipids go down, another 1/3 saw them go up, and the last third saw no real change.

I'm in the category of those who saw lipids go down. In 2003, just before adopting LC eating, my total cholesterol was around 240. Just high enough that my doc wanted me on statins.

Since adopting LC in late 2003, my cholesterol has stabilized between 150 and 180. My HDL has slowly improved during that time from the 60s to the 90s and trigs have stayed about the same - in the 40s. LDL has gone from 130ish to 70-90ish. For the last 5 or so years, my HDL has been higher than my LDL.

Ken (khrussva) and Rob (GRB5111) have shown some really interesting results from how fasting vs general LCHF can affect blood panels.