Pregnant women can use baking soda to wash fruits, and baking soda is usually not harmful to the health of pregnant women and fetuses. The main component of baking soda is sodium bicarbonate, which is a weak alkaline substance. The purpose of washing fruits with baking soda is to remove pesticide residues on the surface of the fruits, so as to avoid the pesticide residues from jeopardizing the health of the pregnant women or the fetus. Baking soda can be used to wash fruits, but also often as cookies, pastries, bread and other puffing agent, which is basically harmless to the human body, applicable to most of the population, including pregnant women, so pregnant women can use baking soda to wash fruits. If pregnant women consume baking soda cleaned fruit, any physical discomfort, should immediately stop eating, if the discomfort symptoms continue to be unrelieved or more serious, it should be timely to seek medical attention.