How do tomatoes help during pregnancy? Tomatoes can keep both, the expecting mother and the unborn baby, healthy as it is rich in iron and Vitamin A. It also contains Vitamin C which helps in the formation of healthy bones, teeth and gums in the developing baby. Being rich in iron, tomatoes help prevent anemia in expecting mothers. They also help in providing folate that provides protection against neural tube defects such as spina bifida in the unborn baby.