I know that red meat and food with fats and palm oil are no good.  Growing up, I had high cholesterol and I ate a lot of grilled chicken, salad, vegetables, fruit... these things are healthy and keep your cholesterol down.  It's the junk food like fast food, chocolate, candy, cookies and chips that are bad for you.  Even with cookies and chips though, you can look at the ingredients and see which aren't as bad as others.  You can eat these things, but small bits and not every day.  Good luck.