The data regarding sensitisation during pregnancy or breast-feeding is inconclusive with regard to peanut allergy. As a precautionary measure, it is advised by the US Department of Health that "pregnant or breast-feeding women who suffer from diagnosed allergic conditions, or where the father or a sibling of the child has a clinical history of such conditions, may wish to avoid eating peanuts and food containing peanut products." It was further stated that "there is no reason for pregnant or nursing mothers who do not fall into this category to avoid eating peanuts."

This means that eating peanuts is safe, unless there is a history of peanut allergy in the family.