If you can’t get your hands on liver cheese without liver, at least avoid eating it during the first trimester.Pregnancy food cravings is the most popular subject amongst foodie mums-to-be. Nutritionist Dr Rana Conway explains: “Pregnant women and even women trying for a baby are advised not to eat liver or liver products. By using Verywell Family, you accept our National Institutes of Health. Medically reviewed by Brian Levine, MD, MS, FACOG Too much retinol in pregnancy may be harmful to your unborn baby. Ⓒ 2020 About, Inc. (Dotdash) — All rights reserved )A single serving of cow's liver can contain up to 30,000 IU of retinol. If you think you’ve come in contact with These foods carry the risk of listeria. A teaspoon of cod liver oil contains 4,500 IU of retinol. Avoid Eating: Raw Meat Raw meat can infect you with salmonella or toxoplasmosis. Years ago it was common for parents to give children cod liver oil because it's rich in vitamins. But you would have to eat that much every day over a period of months to receive a toxic amount of preformed vitamin A.It's a good idea to avoid daily doses of cod liver oil as well. The liver is known to contain a variety of substances that can be quite beneficial for the mother as well as the growing child. Robin Elise Weiss, PhD, MPH is a professor, author, childbirth and postpartum educator, certified doula, and lactation counselor.