Variable eggs, also known as fluffy eggs, can be eaten by pregnant women, but they should be eaten in small amounts. Loose eggs contain a variety of minerals, trace elements, sugars and amino acids and other nutrients, which can bring certain nutrients to the human body and help maintain normal physiological functions. However, the preserved eggs belong to the pickled food, is the egg placed in quicklime or grass ash made of alkaline solution pickled and processed, has a certain alkaline material, and may contain lead and other heavy metals, pregnant women’s body and fetal growth and development of adverse effects, so it is recommended that pregnant women eat a small amount. In addition, pickled food, in addition to pine eggs, there are salted vegetables, salted fish, salted eggs, salted meat, etc., due to the high salt content, if often or excessive consumption, it is easy to aggravate the burden on the kidneys. Pregnant women should eat more fresh food in their diet to ensure comprehensive and balanced nutrition.