For years, my parents have been limiting themselves to one egg a day — or even just the white — because they heard egg yolks are bad for cholesterol.

It breaks my heart. They're literally throwing away the most nutritious part of the egg out of misplaced dietary fear.

Let's set the record straight on cholesterol.

The main reason older people avoid eggs is the cholesterol in the yolk. But here's the thing: both Chinese and American dietary guidelines have already removed the upper limit on daily cholesterol intake.

Scientific research has confirmed that 70% to 80% of the cholesterol in our blood is produced by our own bodies. Only a small portion comes from food. A healthy older adult can eat 2–3 whole eggs a day with minimal impact on blood cholesterol levels.

And egg yolks aren't just protein — they're packed with lecithin and lutein, which are great for the brain and eyes. Throwing away the yolk means throwing away the best part.

How to eat right: a simple guide

First, double the egg count. If your parents don't eat much meat, 2 or even 3 whole eggs a day is perfectly fine. The best preparations are boiled eggs, steamed egg custard, or egg drop soup — these retain the most nutrients and are easy on aging digestive systems.

Second, combine protein sources. Don't rely on eggs alone. Aim for these four things daily:

  • 1 cup of milk (or yogurt; lactose-free milk if needed)
  • 1–2 whole eggs
  • A palm-sized portion of lean meat, chicken, or fish
  • A serving of tofu or other soy products

Final thought

For older parents, the hardest thing to change isn't habits — it's decades of accumulated "health beliefs." If you tell them to eat more, they might think you're wasting money or contradicting their doctor.

Share this article with them. Use the scientific evidence to show that eating an egg a day is storing up immunity and lightening their children's burden.

Of course, if a family member has severe kidney disease, hyperuricemia, or diagnosed severe hyperlipidemia, please follow the doctor's advice on protein and yolk intake.