Do blue egg yolks cause cancer?

Eating an egg every morning provides about 7 grams of protein, which is nutritious, delicious and convenient

Recently, a health program said that boiled eggs for more than 10 minutes, the yolk may turn blue, and the blue yolk is poisonous and will increase the risk of cancer after eating

Why do the yolks of boiled eggs turn blue?

The protein in eggs is rich in cysteine, a sulfur-containing amino acid that produces hydrogen sulfide when heated

As for the carcinogenic claim, it's not really reliable

Therefore, the greening of egg yolk will at most affect its "face value", and will not affect human health

In addition, many people like to eat "soft-hearted eggs", that is, only boil the eggs until they are three-ripe, and the yolks are basically still in a liquid state

So, how exactly can you cook a "perfect" egg? It's not that difficult, just follow the 3 steps below

The first step, wash the eggs and put them in the pot with cold water; the second step, cover the pot, turn on the fire, and start the timer for 3 minutes after the water boils; the third step, turn off the heat after 3 minutes, do not open the lid, and simmer for 5 minutes.