Thanks to the 1992 Canada's food guide and an overzealous GP I developed a slow thyroid.  This caused him and other doctors I've had since to treat symptom after symptom by pulling out a prescription pad each time.  All these problems are gone now except for a very slowly improving thyroid.  I did it by eating eggs, meat and fat the way I used to but without the muffins or pastry and no fruit juice at all.  I don't need to run more than a couple of miles a week now and I'm healthier than twenty years ago when I would run twenty miles a week.  Cholesterol numbers don't matter, you can't improve them much.  Just watch the triglyceride levels.