Is avoiding foods that are likely to give my kid an allergic reaction as early as she’s a baby will guarantee her that she won’t be allergic to them when she gets old?

To add on to the ladies, if your family has a history of family member that is allergy for example, nuts, it's also best to delay it after they are 12 months and above and start small. Also, there are allergy tests that you can do if you think that your baby is allergic to a certain food. For more information, you can check with KK Hospital. I believe Singapore General Hosp has the same test too but personally I would go with KK Hospital since they specialize with kids. http://www.kkh.com.sg/Services/Children/AllergyService/Pages/Home.aspx