Natural Cholesterol Reducer
Policosanol--was proven to lower cholesterol just as much as prescribed statin controllers--usually optimal effects within eight weeks. It is made from the waxy part of the sugar cane. Sorry i don't have a particular reference for you but when I was researching there were MANY available. Do a search, check out for yourself. I think
www.primev.com had a good price for it but you may find cheaper.
About the other stuff mentioned:
Fish oils ~ in large doses (10-12,1 gram capsules a day),fish oils significantly reduce triglycerides (fats in the blood), but have little effect on cholesterol.
Garlic ~ trials with garlic have been inconsistent and show only marginal effects on cholesterol. Dosages are typically between 2 to 5 grams of fresh garlic equivalent.
As margarines containing plant sterols work on inhibiting the absorption of dietary cholesterol, they don't impact the 75% of cholesterol produced by the body.
Side effects, nothing really--the only complaint was weight loss, not enough to make a habit out of it though so don't get excited.