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Baby

      How to Help Support Your Baby’s Immune System

      Happy father with little baby boy at home

      How to Help Support Your Baby’s Immune System

      Read time: 3 minutes

      Discover how to help your baby’s immune system, including the benefits of breastfeeding and tips for baby immune support.

      Breastfed Baby Immunity

      Breast milk gives your baby the fuel and building blocks they need to grow and develop, and also provides immune protection for your infant. Breast milk contains important proteins involved in immune function such as antibodies and cytokines, as well as its own ‘friendly bacteria’ which helps your infant’s immune system to mature1.

      The NHS recommends that you breastfeed your baby exclusively for six months, and continue breastfeeding alongside introduction of foods for the first two years of life or for even longer if you would like to2. You can read more about the benefits of breastfeeding for mums and their babies here.

      Important Nutrients for Baby Immune Support

      Some vitamins are essential to support your baby’s immune system, such as vitamin A, which is required by our white blood cells in their response to bacteria. The NHS recommends:

      • If you’re breastfeeding your baby under 6 months old, you should give your baby a daily supplement of vitamin D.
      • If you’re breastfeeding your baby over 6 months old, you should give your baby daily supplements of vitamins A, C and D.
      • If your baby is formula fed, and they have more than 500ml of formula milk a day, you do not need to give supplements to your baby as formula milk is already fortified with vitamins3.

      Foods to Support Your Baby’s Immune System

      The NHS recommends you start introducing your baby to their first foods at around six months of age4. The type of first foods that you introduce to your baby when they are ready, may have a role in preventing food allergies. For example, research has shown that babies at high risk of peanut allergy who were provided with snacks containing peanuts in early life were less likely to develop peanut allergy5.

      If you are worried your baby may have an allergy, please speak to a Healthcare Professional. You can read more on nutrition and baby immune systems here.

      Vaccinations for Baby Immune Support

      You can also support your baby’s immune system by having the pregnancy vaccinations and immunisations recommended by the NHS – this includes the seasonal influenza vaccination, and a whooping cough vaccination. These pregnancy vaccinations help to protect both you and your baby as the antibodies made by your immune system will also pass across the placenta and through your breast milk to your baby.

      Once your baby has arrived, make sure they have the NHS recommended childhood vaccinations to protect them against serious childhood illnesses6.

      Establish a Healthy Sleep Routine

      In adults, we know that sleep (or lack of it!) can affect your health, including your immune function7. You can find out more on how to establish a good baby sleep routine here.

      More on Your Baby’s Immune System

      There are other factors before and during birth which can affect your baby’s immune system.

      A small percentage of children in developed countries have food allergies (3-6%), and around 1 in 6 children have eczema in the UK8.

      Babies born by caesarean section are more likely to develop food allergies and asthma than those born by vaginal delivery9. This may be due to a lower level of exposure to maternal gut bacteria during the birth, leading to changes in how a baby’s immune system matures. 

      However, only a very small number of food allergy cases can be connected to the birthing method alone. There are lots of factors which have been linked to a reduced risk of allergy in children, including genetics, pet ownership, and having an older sibling1.

      Dr. Caroline Childs

      Dr Caroline Childs is a Registered Nutritionist and a lecturer in Nutritional Sciences at the University of Southampton. Her research includes nutrients such as dietary fatty acids, probiotics, and prebiotics.

      1. Kim H et al. Birth Mode, Breastfeeding, Pet Exposure, and Antibiotic Use: Associations With the Gut Microbiome and Sensitization in Children. Curr Allergy Asthma Rep 2019;19,4:22.  Doi:10.1007/s11882-019-0851-9. Available at: https://pubmed.ncbi.nlm.nih.gov/30859338/
      2. NHS. Your breastfeeding questions answered [Online]. 2020. Available at: https://www.nhs.uk/conditions/pregnancy-and-baby/your-breastfeeding-questions/. [Accessed November 2020].
      3. NHS. Vitamins for children [Online]. 2018. Available at: https://www.nhs.uk/conditions/pregnancy-and-baby/vitamins-for-children/. [Accessed November 2020].
      4.  NHS Start 4 Life. Ready or Not? [Online]. Available at: https://www.nhs.uk/start4life/weaning/ready-or-not/. [Accessed November 2020]. 
      5. Du Toit G et al. Randomized trial of peanut consumption in infants at risk for peanut allergy. N Engl J Med 2015;372,9:803-13. Doi:10.1056/NEJMoa1414850. Available at: https://www.nejm.org/doi/full/10.1056/nejmoa1414850. 
      6. NHS. NHS vaccinations and when to have them [Online]. 2019.  Available at: https://www.nhs.uk/conditions/vaccinations/nhs-vaccinations-and-when-to-have-them/. [Accessed November 2020]. 
      7. Besedovsky, L et al. The Sleep-Immune Crosstalk in Health and Disease. Physiol Rev. 2019; 99,3:1325-1380. Doi:10.1152/physrev.00010.2018. Available at: https://pubmed.ncbi.nlm.nih.gov/30920354/. 
      8. BSACI. Allergy in Children [Online]. Available at: www.bsaci.org/patients/most-common-allergies/allergy-in-children/. [Accessed November 2020]. 
      9. Bager, P et al. Caesarean delivery and risk of atopy and allergic disease: meta-analyses. Clin Exp Allergy 2008; 38,4:634-42. Doi:10.1111/j.1365-2222.2008.02939.x. Available at: https://onlinelibrary.wiley.com/doi/full/10.1111/j.1365-2222.2008.02939.x?saml_referrer.

      Important notice:

      Breastfeeding is the best form of nutrition for babies and provides many benefits to babies and mothers. It is important that, in preparation for and during breastfeeding, you eat a healthy, balanced diet. Combined breast and bottle feeding in the first weeks of life may reduce the supply of your own breastmilk, and reversing the decision not to breastfeed is difficult. Always consult your healthcare professional for advice about feeding your baby. If you use infant formula, you should follow manufacturer’s instructions for use carefully.

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      Your baby's future health begins here

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      Questions about feeding and nutrition?

      Our midwives, nutritionists and feeding advisors are always on hand to talk about feeding your baby. So if you have a question, just get in touch.

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