9. Fish
There’s no usual age when you can become allergic to fish, but it’s often something that happens when you are young. Since this is such a large category, it can be a bit confusing. For instance, if your child is allergic to finned fish, such as tuna or salmon, they don’t necessarily have to be allergic to shellfish too, such as shrimp, crabs, and lobsters. And vice versa. Depending on the doctor you’ll be talking to, you’ll get advised just to avoid all kinds of fish or just one type of fish. In the end, you have to find out what works best for your child and for your family since, let’s be honest, if your kid is allergic to something you’re unlikely to enjoy it as often as you did before.