My mom has high cholesterol, and absolutely REFUSES to medicate herself for it. If your dad doesn't want to go the medicine route, I would suggest a change of diet, as that is what she did. She's a vegetarian now, and doesn't eat cheese, chocolate, and sometimes wine (along with many other things), plus she's a yoga teacher and leads an active lifestyle. If your dad doesn't want to go to those extremes (i sure wouldnt!), he could go to the doctor and ask for a list of foods to avoid.
Sorry I couldn't be of more help! I would ask my mom exactly what all of the options are, but she isn't home at the moment. I hope that your dad will be okay!
<3 Anya--
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