What happens if a pregnant woman eats a food that her fetus is deathly allergic to?

Question

What happens if a pregnant woman eats a food that her fetus is deathly allergic to?

In: 57

Answer 1

Fetuses don’t get whole pieces of food through the umbilical cord from the placenta, they get nutrients from the mother’s blood that pass into the blood vessels going to the fetus. The food has already been digested and broken down by the mother’s body. The most fetuses do is swallow amniotic fluid which they later pee out. (It’s sounds far more gross than it is since fetuses don’t produce urine yet.)