This might not be your issue, but I recently dropped my cholesterol 60 points and the only thing I did was to stop drinking tea. It was 213 in June, and now it's 153.
I found out that tea contains high levels of fluoride which affect the thyroid which affects your cholesterol. I had normal thyroid tests, so don't count on those to tell you if you have a problem with thyroid.
I'm going to post about it on here so more people know about this. I'm just completely shocked that tea had such a negative affect on my health. I didn't even like green tea very much, but I thought it was good for me!