I have very high cholesterol and am on the full dosage of statins so cannot have any more. In order to lower it as much as possible I avoid as much fat as I can. So when served chicken, which is fairly fat free except for the skin I always remove the skin. Any other meat he must not eat any of the fat, so always trim off the fat. No fried food if possible. In fact, think about fat and try to remove most of it from his diet. However, be careful as the body needs a little bit of fat so adopt the saying, Low fat, not no fat. Butter is out, try and find a substitute with no hard fats. I use Flora Pro-activ, which is a bit expensive, but worth it. I also drink a Flora pro-activ drink, one a day which is also expensive. Since taking up this regime my cholesterol has gone down a few points. I am not sure if it is the pro-activ or not, but it certainly seems to have worked. If you need fat for cooking use olive oil.