"A teratogen is anything that causes abnormalities in the development of the fetus if the mother is exposed to it during pregnancy. Examples of different types of teratogensinclude certain chemicals, medications and infections."
Teratogens are mainly harmful to pregnant people and their children. Some foods that include it are: certain fish (like halibut, dogfish, swordfish, most bream, undercooked shellfish) large amounts of alcohol can also cause a rise in teratogens.
