Foods that can be eaten include: meat, hard cheese, tofu, eggs, butter and vegetables with no starch. Some foods that are NOT allowed include: cereal, pasta, milk, breads and other sugars. If you are scheduled in the late afternoon and can eat breakfast before the scan, it must be a low carbohydrate diet as well.
The placenta (also known as afterbirth) is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake, thermo-regulation, waste elimination, and gas exchange via the mother's blood supply; fight against internal infection; and produce hormones to support pregnancy.
The blood is grown by the fetus along with the organs and bones. The fetal blood supply is separate from the mother's. The two blood systems interact through the placenta-oxygen and food pass though to the fetal blood from the mother, waste products flow from the fetus to the mother.