The national nannies and the old wives have formed an alliance to pepper the pregnant woman with directives on everything from alfalfa sprouts to Zithromycin. So what's the skinny (remember, however -- what your doctor says goes)?
Food and Drink
Cheeses
The CDC says listeriosis, a food-borne illness with mild flu-like symptoms that can be overlooked, can result in premature delivery, miscarriage, severe illness, or death of the baby. Heidi Murkoff, author of What to Expect When You're Expecting, concurs with the U.S. Department of Agriculture, which cautions that you not eat unpasteurized soft cheeses (and other unpasteurized dairy products), hotdogs, or lunch meat unless cooked.
Cheeses made in the U.S. must be made from pasteurized milk (this process kills the listeria organism), so they are fairly safe. Imported soft cheeses are potentially problematic. These may include Brie, Camembert, feta, goat, Montrachet, Neufchatel, and queso fresco. Listeria may also be found in unpasteurized semi-soft cheeses (slightly more solid cheeses that do not grate easily and are often coated with wax to preserve moisture and extend shelf life). Semi-soft cheeses include Asiago, blue, brick, Gorgonzola, Havarti, Muenster, and Roquefort.
Cheddar, mozzarella, cream cheese, and cottage cheese are fine. "Stay away from those yummy roadside ciders, too," Murkoff advises. "They're not pasteurized."
Diet soda
Minimal harmful effects have been shown from the use of the artificial sweetener aspartame in pregnancy, according to Siobhan M. Dolan, MD, assistant professor of obstetrics and gynecology at the Albert Einstein College of Medicine in the Bronx, N.Y. "Like everything else, moderation is best." A daily diet pop or aspartame-sweetened yogurt is probably harmless.
Coffee
Most studies show no adverse effects from three or four cups of coffee. Still, some doctors and midwives are cautious and point to studies linking java to attention deficit hyperactivity disorder and migraines. There are some data that suggest that large amounts of caffeine lead to low-birth-weight babies.
However, if you choose to drink coffee, moderation is key. "Sometimes it's harder on you to quit entirely," Dolan admits. "Pregnancy is hard enough on you."