In the traditional preserved eggs, heavy metals such as lead oxide or copper should be added to promote the solidification of protein. If eaten for a long time, the lead or copper in it will accumulate slowly, which is harmful to health. Nowadays, the pickling process of preserved eggs has been improved, and copper sulfate and zinc are used instead of lead oxide, hence the name "lead-free preserved eggs". In fact, "lead-free preserved eggs" do not contain lead at all, but the content of lead is much lower than that of traditional preserved eggs. Therefore, it is not recommended to eat preserved eggs often.
Secondly, salted eggs and preserved eggs contain a lot of nitrite, which is not good for your health.
Extended data:
Eating the following fruits at night has the best slimming effect:
1 Apple
Apples are rich in dietary fiber and pectin, which can help stomach peristalsis and thus expel toxins from the body. Moreover, apples also contain potassium, which can effectively reduce heat absorption and prevent leg edema. So let yourself become an apple control as soon as possible, which can not only lose weight but also beautify.
Step 2: bananas
Banana is one of the protagonists in the fruit diet. This is because bananas are rich in cellulose, vitamin A, potassium and pectin, which can effectively regulate the stomach and expel toxins. If you want to lose weight, you might as well drink a cup of banana milk juice in the morning, which will not only make your bowel movements smooth, but also provide energy for the whole morning.
3. Kiwifruit
Kiwifruit contains a protein-decomposing enzyme, which can decompose protein in food into small amino acids which are more easily absorbed by human body, thus reducing the chance of fat accumulation. Moreover, lysine and methionine in kiwifruit are essential amino acids to help carnitine synthesis. Synthetic carnitine can effectively promote fat burning and reduce fat accumulation. Therefore, kiwifruit is a powerful assistant to lose weight.
4. tomatoes
Tomatoes are low in calories, so losing weight is a good thing. Rich in dietary fiber and water, it is easy to make people feel full. Her unique sour taste can also stimulate the secretion of gastric juice, so as to promote gastrointestinal peristalsis, help the rapid burning of fat, and also help the dietary fiber in tomatoes absorb excess fat in the intestines and excrete it together with fat and waste.
5. papaya
Papain in papaya can not only decompose protein and sugar, but also decompose fat more effectively. By decomposing fat, reducing body fat, shrinking mast cells, promoting metabolism and discharging excess fat in time, the purpose of losing weight can be achieved.
6.pitaya
Pitaya is rich in nutrition, which can effectively reduce blood sugar and cholesterol, and the carotene contained in it can resist oxidation and effectively regulate the balance of the body. Moreover, it contains high cellulose, which is easy to give people a feeling of fullness after eating, reduce appetite, and thus achieve the purpose of losing weight.
7.orange
Oranges contain a lot of water-soluble fiber, which can increase satiety and promote intestinal digestion. It is a good fruit to lose weight.
References:
Baidu encyclopedia-preserved eggs
Baidu encyclopedia-salted egg