the FSA says this, for example. Useless: "Can a person with a nut allergy eat pine nuts? Pine nuts (sometimes called pine kernels) are not botanically classified as nuts, but there have been some reports of allergy to pine nuts, particularly in people who are allergic to a number of different types of nuts. So it’s a good idea to avoid pine nuts if you know that you are allergic to nuts, unless you have eaten them before without any problems. Don’t forget to watch out for foods made with pine nuts, such as pesto (although pesto can also be made with nuts)."