The reference to statins increasing the calcification by hardening the soft plaque (and I guess adding to the interior artery walls?) and thus the increasing CAC score is interesting. I'd never read/heard that before. My first CAC CT was in late January this year and freaked me out as I had no idea - it's was 1,006. So the cardioligist immediately doubled my statins (Avorvastin) from 20-40 mg and added Zetia plus low-dose aspirin (was already on diltiazem for hypertension though not very bad) . Then I did my part. From February until now, eating only fish and chicken and occasionally pork, lots of veg. Lost 18-20 pounds (around 8kg) in four months. Walk 3 miles every morning with my wife, and BMI normal since June. The stress test in January was also fine (asymptomatic still). Here's the punchline: I had a CTA for something else last month and asked them to also check my heart arteries (since I was already taking the contrast dye). I was shocked to learn my CAC score had risen by more than 25% despite all that above! So is it the doubling of the statins that did that? Or is that normal? Dr changed me over to Rosuvastatin for some reason.