Staying Healthy Peanut Butter and Pregnancy By Robin Elise Weiss, PhD, MPH twitter linkedin Robin Elise Weiss, PhD, MPH is a professor, author, childbirth and postpartum educator, certified doula, and lactation counselor. Learn about our editorial process Robin Elise Weiss, PhD, MPH Reviewed by Reviewed by Willow Jarosh, MS, RD on August 11, 2020 instagram Willow Jarosh, MS, RD, is a registered dietitian and nutrition coach specializing in intuitive eating. She is the author of Healthy, Happy Pregnancy Cookbook. Learn about our Review Board Willow Jarosh, MS, RD Updated on September 17, 2020 Print Your Pregnancy Week by Week Overview First Trimester Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 Week 7 Week 8 Week 9 Week 10 Week 11 Week 12 Week 13 Second Trimester Week 14 Week 15 Week 16 Week 17 Week 18 Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Week 27 Third Trimester Week 28 Week 29 Week 30 Week 31 Week 32 Week 33 Week 34 Week 35 Week 36 Week 37 Week 38 Week 39 Week 40 Hero Images / Getty Images Data from the Centers for Disease Control and Prevention (CDC) estimates that in the United States, 1 in 13 children has a food allergy. Peanuts and tree nuts are among the most common food allergies in both children and adults. While these allergies are separate, many people have both. Researchers are trying to figure out why the number of kids who are diagnosed with these life-threatening food allergies is on the rise. About 1 in 13 children in the U.S. have a food allergy. Peanut and tree nut allergies are among the most common. Most Common Food Allergies in Kids What the Research Says One earlier suggestion was that the foods a person eats during pregnancy may affect whether or not a baby later develops an allergy. If this theory proved to be true, people might be advised to alter their diet and avoid certain allergens, like peanuts or tree nuts, while they are pregnant. One large study asked pregnant women to eat peanut butter, then followed up long-term with their children to see if they developed allergies, and if so, what allergies they developed. The researchers found the opposite of their original hypothesis. When a pregnant woman consumed peanut butter, it appeared to have a positive effect on allergy development in her child. The findings suggested that for people who are not allergic to peanuts, eating peanuts during pregnancy might help prevent peanut allergies in children. Why Peanut Allergies Are on the Rise Peanuts and peanut butter are good sources of protein, fat, and a variety of nutrients, making them a great pregnancy snack. Many people find a classic PB&J to be comfort food and enjoy the sandwich's convenience and ease. Even though about 20% of children will outgrow their peanut allergy, you should never let them eat peanuts before you have consulted with your allergist. An allergist can safely test whether your child has outgrown their allergy. Some families have special circumstances that would mean that avoidance of peanuts would be a good thing, particularly if mom is allergic to them. If you or a family member have food allergies, discuss your dietary habits with your allergist. There is ongoing research looking for new ways to prevent, diagnose, and treat these food allergies and others. Can Infants With a Nut Allergy Eat Peanut Products? Was this page helpful? Thanks for your feedback! Get diet and wellness tips to help your kids stay healthy and happy. Sign Up You're in! Thank you, {{form.email}}, for signing up. There was an error. Please try again. What are your concerns? Other Inaccurate Hard to Understand Submit Article Sources Verywell Family uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Centers for Disease Control and Prevention (CDC), Division of Population Health, National Center for Chronic Disease Prevention and Health Promotion. Food Allergies. Updated June 8, 2020. Fleischer DM, Conover-Walker MK, Matsui EC, Wood RA. The natural history of tree nut allergy. J Allergy Clin Immunol. 2005;116(5):1087-1093. doi:10.1016/j.jaci.2005.09.002 Additional Reading Frank L, Marian A, Visser M, Weinberg E, Potter PC. Exposure to Peanuts in Utero and in Infancy and the Development of Sensitization to Peanut Allergens in Young Children. Pediatr Allergy Immunol. 1999 Feb;10(1):27-32. A. Lindsay Frazier, Carlos A. Camargo Jr, Susan Malspeis, Walter C. Willett, Michael C. Young. Prospective Study of Peripregnancy Consumption of Peanuts or Tree Nuts by Mothers and the Risk of Peanut or Tree Nut Allergy in Their Offspring. JAMA Pediatrics, 2013 DOI: 10.1001/jamapediatrics.2013.4139 American Academy of Pediatrics Committee on Nutrition. Effects of Early Nutritional Interventions on the Development of Atopic Disease in Infants and Children: The Role of Maternal Dietary Restriction, Breastfeeding, Timing of Introduction of Complementary Foods, and Hydrolyzed Formulas. Pediatrics, volume 121, number 1, January 2008, pages 183-191. Lack, G., at al. Factors Associated with the Development of Peanut Allergy in Childhood. New England Journal of Medicine, volume 348, number 11, March 2003, pages 977-985.