So the thing with oats is that there tends to be a lot of cross contamination with wheat. I am on a gluten free diet and my son is also allergic to gluten, so he cannot have any wheat products. Gluten is also found in barley. There is gluten free oatmeal out there, but I don't know about baby food. We are also just about to go down this road with my 6 month old. She is starting on rice cereal and then we are headed start to other foods due to the gluten factor in our family, we will just forego the oatmeal and barley at this time. Was it just wheat that your son tested positive for or all gluten grains? Just be sure about that when reading labels. Good luck!!