Relationship between the diet of the pregnant woman and allergies in the baby

Relationship between the diet of the pregnant woman and allergies in the baby

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At present, as well as in the last 50 years, the investigations about the increasing food allergies in babies and children are very numerous. The reality is that these allergies are extremely dangerous, becoming a serious public health problem in developed countries, especially allergies to milk proteins and nuts.

Can this allergy arise in the womb as a reaction to what the mother eats? We clarify what is the relationship between the diet of the pregnant woman and allergies in the baby

During years, recommendations during pregnancy included a strict ban on the consumption of nuts, with the idea of ​​preventing the development of this allergy in the growing baby. Some studies supported this prohibition, claiming that early exposure to the antigen or allergen, both in the mother's womb and through milk during breastfeeding, increases the possibility of developing a nut allergy.

Further, the consumption of other foods such as soy and its derivatives was limited, capable of producing cross sensitization. Some protein fractions of soy are homologous to the proteins of nuts that cause allergic reactions, that is, soy proteins can be mistakenly identified as nuts proteins also in the body, and develop the same type of reaction.

This concept, known as in utero sensitization is based on the baby's contact with all kinds of substances from the mother's diet through the amniotic fluid, including the proteins that cause allergic reactions.

In the same way, these proteins can also be found in breast milk, being able to produce the sensitization that causes the allergy. However, at present, more recent studies have revealed that breastfeeding in itself does not seem to be a risk factor for the development of this allergy, but that, in most cases, it can act by exerting a protective effect, hence The possible in utero sensitization has also been questioned, generating great controversy.

The mother's diet during pregnancy possibly has an appreciable role in relation to the appearance of allergies in her offspring.

However, this relevance is limited to cases in which there is a predisposition to the appearance of allergies through genetic inheritance (history of allergy, atopy or asthma, both on the maternal side and on the paternal side).

These children have a high probability of developing allergies throughout their lives, so the mother's diet only influences this sensitization to develop sooner or later, without exerting a protective action.

In these cases, to postpone sensitization, it may be considered It is recommended that the mother limit the consumption of relevant allergens such as nuts, soy, fish or shellfish.

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Video: Αλλεργίες u0026 Δέρμα: Πώς να τo φροντίσω εαν έχει παρουσιάσει αλλεργίες;. La Roche-Posay Greece (May 2022).