Experts say that it is never safe to drink extra coffee during pregnancy. Caffeine and other substances in it can be harmful to the fetus. It can even cause miscarriage. Tamanna Chowdhury, chief nutritionist at Apollo Hospital, said : " Various studies have suggested that coffee can cause miscarriages and it can also lead to low birth weight babies." In addition, caffeine in coffee inhibits the absorption of hemoglobin. This can lead to anemia. Excess caffeine reduces appetite. Experts believe that this can reduce the amount of food eaten during pregnancy. Nutritionist Tamanna Chowdhury added , ' Many people have problems with constipation during pregnancy. And it can increase constipation. Again the mother is told to rest during pregnancy. However, drinking tea and coffee can reduce sleep. This can disrupt the rest of the child-bearing woman. Coffee contains more caffeine than tea, said Tamanna Chowdhury. "However, the way tea is made with milk or mesh in our country can increase the amount of caffeine , " said Tamanna Chowdhury. Therefore, nutritionists advise that it is better to eat a limited amount of tea and coffee during the nine months of pregnancy. And it is best to avoid it altogether.