Don't eat eggs that have been boiled for a long time, because if the eggs are boiled in boiling water for more than 10 minutes, a series of chemical changes will occur inside, and the protein structure will become tight, making it difficult to contact with protein digestive enzymes in gastric juice and be digested; Protein in eggs contains more methionine. If it is heated for a long time, it will decompose sulfide, because it reacts with the iron in the egg yolk, which will form iron sulfide that is not easily absorbed by the human body, and of course, a lot of nutrients will be lost.
In fact, the best time to boil eggs is easy to grasp. Put cold water in the pot and count for 5 minutes after the water boils. Cooked eggs not only kill harmful pathogens, but also retain nutrients completely. This boiled egg can be delicious and healthy!
Cooked eggs are best eaten on the same day. If you keep it for a long time, the nutrition will not be very good. It is recommended to eat for at most one day, especially when the weather is hot, which will lead to the deterioration of eggs.
Please don't eat boiled eggs when they smell strange, so as not to do harm to your health.
1 and "3-minute egg" are lightly cooked eggs, which are the easiest to digest. Digestion takes about 1 hour for 30 minutes.
2. "5-point egg" is a half-cooked egg, which takes about 2 hours to digest in the human body; It takes 3 hours 15 minutes for an egg boiled for too long to be digested in the human body.
3. "5-cent egg" is not only soft and tender, but also rich in egg flavor, which is beneficial to human body's intake of nutrition. In terms of nutrition, the digestibility of eggs cooked in 10 minutes is the highest, and the nutrients are basically not lost.
Eggs are natural food imagined by human beings, and we should pay attention to science while serving the law. For the elderly, it is best to boil eggs, lie eggs, steam eggs and stir eggs, because frying, frying and frying are delicious, but they are difficult to digest. If eggs are processed into salted eggs, their calcium content will increase significantly, from 55 mg per 100 g to 5 mg12 mg, which is about 10 times that of fresh eggs. It is especially suitable for middle-aged and elderly people with osteoporosis. Also need to be reminded, never eat raw eggs. Some people think that eating raw eggs is nutritious, which is unscientific.