Can your unborn baby be allergic to some of the foods you are eating during pregnancy?

Infant food allergy: Infants can show food reactions in the first months/yr even if they have never been offered up to that point. In theory, pre-natal exposure late in pregnancy may have triggered their reaction, even if mom doesn't have a problem with the material. Some infant rxns are major: facial swelling, hives, frothy pink stools or less intense: chronic congestion, recurrent rhino-sinusitis. Testing can confirm.