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During pregnancy, it is important to avoid certain foods that may pose a risk to the health of the mother and the baby. Some foods to avoid during pregnancy include:

1. Raw or undercooked meat, poultry, seafood, and eggs: These foods may contain harmful bacteria such as Salmonella, Listeria, and E. coli.

2. Unpasteurized dairy products: Unpasteurized milk and cheeses may contain harmful bacteria that can cause foodborne illnesses.

3. High-mercury fish: Certain types of fish, such as shark, swordfish, king mackerel, and tilefish, contain high levels of mercury which can be harmful to the developing fetus.

4. Raw sprouts: Raw sprouts like alfalfa, clover, and radish sprouts may be contaminated with bacteria and should be avoided.

5. Deli meats and processed meats: These meats may be contaminated with Listeria bacteria, which can cause infections during pregnancy.

6. Caffeine: High levels of caffeine consumption during pregnancy have been linked to an increased risk of miscarriage and low birth weight.

It is important for pregnant women to consult with their healthcare provider or a nutritionist for personalized dietary recommendations during pregnancy.