1, pregnant women, people with spleen yang deficiency and diarrhea due to cold and dampness should not eat, and patients with hypertension, diabetes, cardiovascular disease and liver and kidney diseases should eat less.

Estrogen in pregnant women can promote excessive retention of water and salt in the body. Eating salted duck eggs will make the salt intake far exceed the body's needs, leading to high edema of pregnant women, which will greatly reduce the effective blood circulation in the body and the blood supply to the fetus, which will cause the fetus to lack oxygen in the uterus and affect growth and development. Because of placental ischemia, it is also easy to trigger pregnancy-induced hypertension syndrome; Salted duck eggs should not be eaten more, so drink more water after eating.

2. The cholesterol content of duck eggs is also high. People with cardiovascular diseases and liver and kidney diseases should eat less. Salted duck eggs are high in salt, so patients with hypertension and diabetes should not eat more.

Extended data:

Nutritional value of duck eggs:

1, rich in calcium. After salted duck eggs, the content of protein in them will be obviously reduced, from14.7g per 100g of fresh eggs to10.4g.. At this time, the fat contained in it will obviously increase, from 1 1.6 grams per 100 grams of fresh eggs to 13. 1 gram. Moreover, the carbohydrate content in salted duck eggs also increased significantly, from 1.6 g per 100 g of fresh eggs to 10.7 g.

One of the most noteworthy is the preservation of minerals. The minerals contained in duck eggs will not be damaged during the pickling process, and at the same time, the calcium can be greatly improved during the pickling process, from 55 mg per 100 grams of fresh eggs to 5 12 mg;

2. Inorganic salts. Salted duck eggs not only contain abundant calcium, but also contain inorganic salts such as iron and phosphorus, and experts have found that the calcium quality and iron content in salted duck eggs are higher than those in eggs and fresh duck eggs. Therefore, their nutritional value is basically the same, and each has its own advantages. Proper consumption is not harmful to the body, so it can be safely eaten in daily life;

3. Clear lung fire. Through research, it is found that all kinds of nutrients contained in salted duck eggs have good effects of nourishing yin, clearing away lung heat, enriching muscles and caring skin, so they are very suitable for eating in summer. In addition, Chinese traditional medicine believes that salted duck eggs can clear lung fire and reduce yin fire, which can cure children's food retention compared with salted egg butter without pickling, and external application can cure burns and eczema;

4. Duck eggs contain phospholipids, vitamin A, vitamin B2, vitamin B 1, vitamin D, calcium, potassium, iron, phosphorus and other nutrients;

5. The content of protein in duck eggs is the same as that in eggs, which has the function of strengthening the body;

6. The total amount of various minerals in duck eggs is much more than that in eggs, especially the iron and calcium urgently needed in the body are abundant in salted duck eggs, which is good for bone development and can prevent anemia;

7. Duck eggs contain more vitamin B2, which is one of the ideal foods to supplement B vitamins.

References:

Baidu Encyclopedia-Salted duck eggs have eight nutritional values, but 7 kinds of people are not suitable for eating.