The full answer
Yes — corn is naturally gluten-free
Corn, in its natural forms (corn on the cob, cornmeal, corn tortillas made purely from corn), is naturally gluten-free and a common substitute base in gluten-free cooking and baking.
Where labels still matter
As with other naturally gluten-free grains, processed corn products (some corn tortillas and chips blend in wheat flour) should still be checked — see how to tell if a packaged food is gluten-free.
Important context
Individual symptoms, reactions, medical histories, food products, and local labeling rules can vary. Community experiences are not medical evidence.
For personal medical decisions, diagnosis, testing, or treatment, consult a qualified healthcare professional.