The prEgnanCy and eArly Childhood nutrItion triaL (ECAIL)

Inclusion Criteria: * Pregnant woman at her 3rd term of pregnancy * Healthy * Aged ≥ 18 years * From a socially disadvantaged background * Living in Lille, Lomme, Loos, Faches-Thumesnil, Ronchin, Hellemmes, Haubourdin, La Madeleine, Lambersart, Mons-en-Baroeul, Saint-André-Lez-Lille, Wattignies, Villeneuve-d'Ascq, Marcq-en-Barœul or Wasquehal; or in the Valenciennes conurbation. * Willing and able to sign informed consent * Who, in the Investigator's judgement, is able to comply with the protocol or study procedures (including French speaking) * If twins are born from this pregnancy, only one will be randomly selected for inclusion Exclusion Criteria: * Pregnant woman under guardianship * Participation in any other interventional clinical trial that is not compatible with the participation into the ECAIL study * No permanent mailing address * Housed in emergency accommodation centres, hotels, movable dwellings or homeless * Planning to move outside the study area prior to the child's first birthday * Serious illness during pregnancy that could interfere with optimal participation in the ECAIL study * Hard drug consumption * Multiple pregnancy (≥3 foetuses).