You can eat seaweed during the third month of pregnancy because seaweed is also rich in nutrients, including a variety of trace elements, B vitamins, riboflavin, and niacin. Regularly eating seaweed is good for the fetus. Growth and development can also help. Be careful to buy seaweed of good quality for consumption, but don’t eat too much seaweed at one time, because it contains additives after all. It is recommended to reasonably combine three meals a day to ensure a balanced diet, so as to better promote the growth and development of the fetus. ”