Diet taboos and precautions for pregnant women in the early stages. During pregnancy, the importance of diet is self-evident. In the early stages of pregnancy, not only do you need to choose more foods that are suitable for providing nutrition, but you also need to avoid some inappropriate eating habits. The following are the dietary precautions and taboos for pregnant women in the early stages. Dietary taboos Pregnant women should avoid eating high-sugar foods, such as candies and cakes, in the early stages. In addition, pregnant women should also avoid eating foods that do not provide adequate nutrition.