Pregnant women are advised to eat three medium-sized prunes a day, not more than ten at most. The fiber content of three medium-sized prunes can be equivalent to the fiber content of a fresh fruit. Prunes are high in sugar and phytic acid and have a good tonic effect. But its gastrointestinal and blood oxygen has a certain effect, and prunes are mostly pickled food, in the process of pickling will add a lot of chemicals, after pickling may also produce other harmful substances, so it is recommended that pregnant women eat prunes in moderation, up to not more than ten. In addition, if pregnant women are concerned about the presence of harmful chemicals in pickled prunes, they can also choose to eat fresh prunes. Because pregnant women need a variety of micronutrients, can be supplemented by eating fresh prunes. But note that when eating prunes must be clean, so as not to cause gastrointestinal diseases.