I see. I’ve heard a similar story from a friend of my mother's. She was in her 40s and mostly ate vegetables, rice, and an egg a day. When she had a blood test, her cholesterol came back high, so her doctor told her to stop eating eggs for a month. Sure enough, her cholesterol went back to normal, and she’s avoided eggs ever since.
I get how hard it would be for your father to cut eggs from his usual diet. Personally, I love eggs and eat them almost every day. Fortunately, my cholesterol levels have always been normal. I do try to maintain a balanced diet and eat eggs in moderation, but I can’t imagine giving them up entirely.
Thank you so much for sharing! :D