When will u intro seafood like crabs, prawns etc. to your children?

I gave my gal eat crab and prawns after 18mths old, only little by little to test if she allergy to it. (extrated from www.parents.com : Usually doctors suggest after 12 months old. That's because these, particularly shellfish, are among the top foods that cause allergies -- and waiting until your baby's immune system is more developed can reduce his risk of a reaction. Although this is still a pretty controversial topic, many doctors recommend waiting even longer -- up to 3 years -- to start your baby on shellfish if severe allergies run in your family, if your baby has already shown signs of being allergic to other foods, or has experienced symptoms of seasonal allergies, eczema, or asthma. If you're concerned, talk to your pediatrician about what's right for your child. hopes it help :)