Do starches contain gluten

Answer 1

it really depends on the manufacturer. some companies process their products such as starches and flours on the same machines, and thus there is a potential cross-contamination. I have found Bobs red mill to be a trustworthy company when it comes to starches and alternative flours.

It is possible that your child is sensitive to starches, or is diabetic and thus has problems with these long chains of sugars.

also, just because your child does not appear gluten sensitive on allergy tests or other tests, it does not mean he is not. there are many forms of gluten sensitivity, some not well known. I myself, am gluten sensitive and did not learn until I was 13.