An embryo can’t handle some things you can do yet, including a variety of food-borne diseases, alcohol, caffeine, hot dogs, daily meats, unpasteurized dairy products or juices. Here is a list of foods that can harm the baby during pregnancy. High mercury seafood. Unpasteurized milk and juice. Refrigerated Meat & Salad. Raw or undercooked meat, poultry, fish, conch shells and eggs. Raw sprouts and unwashed raw products. Unpasteurized cheese. Energy drinks and excessive coffee. Raw papaya. High mercury fish. Undercooked, raw and processed meat. Raw eggs.