If 7mnth old is allergic to carrots & sweet potatoes, could she have a reaction to mangos?

Food allergies: Although it is highly doubtful that your baby is allergic to carrots and sweet potatoes ( has this been confirmed by an allergist?), these 2 vegetables do not cross react with mangoes. All three are very low allergic foods and do not generally cause allergies in infants. I would strongly recommend seeing an allergist to clear it up.

Yes: Mangoes are not in the same families as carrots ; sweet potatoes, so having those specific allergies doesn't increase her chance, but someone with some food allergies often has other food allergies as well ; anyone can be allergic to mangoes. Try to find why your baby has food allergies- see http://www.Leakygut.Co.Uk/allergies.Htm ; http://home.Allergicchild.Com/possible-causes-of-food-allergies/.