BIL and aunt IL are allergic to peanuts but very mildly. They both still eat them and if they have too many their faces go red and swell up (intolerance?). AFAIK, they aren't allergic to other nuts. DCs are 3.6 and 2 and have never had nuts. How do I know if they are allergic or will be allergic in the future. aunt IL was in her 20s when she became allergic. I would like them to be able to have hazelnut or cashewnut butter and almonds. HV says not to give them anything but I think she is saying that because she doesn't know. DS has viral induced asthma which he will probably grow out of. DH has asthma and hayfever. BIL also allergic to prawns. DD any I have no allergies afaik. If I give them nuts now are they more likley to develop an allergy later? Am I being over cautious?