Raw fish may contain the parasite Toxoplasma that can cause blindness and brain damage to the fetus.
Deep sea fish such as shark, grouper, swordfish, marlin and mackerel contain high levels of methylmercury. This metal can damage the brain during fetal development.
Raw eggs or lightly cooked can have salmonella. This bacterium can cause diarrhea and heavy vomiting which stresses the baby and may cause premature births;
Coffee: this drink may be consumed, but in controlled quantities (less than 2 cups per day). This restriction is due to the presence of caffeine, which may be responsible for the retardation of fetal development;
Unpasteurized milk and soft cheeses may be contaminated with Listeria bacteria, its presence in the mother can cause miscarriage, premature birth, stillbirth or fatal disease of the newborn