In the case of peanuts and peanut products which can induce a severe allergic reaction - anaphylactic shock - which can be life threatening, it is best to err on the side of caution. In families with a history of any kind of food allergy, it is advisable to avoid all products containing peanuts including peanut oil until the child is 3 years old and then seek medical advice before introducing peanut products into the diet. Peanut butter and finely groundnuts however can be introduced from 6 months, provided there is no family history of nut allergy.