How do autoimmune diseases, like Celiac where your body effectively overreacts to proteins like gluten to where your body is also attacking its own tissues, affect your immune response to viral infections? Specifically, when you are managing your autoimmune disorder by not presenting your body with stressors like gluten instead of managing symptoms by taking immunosuppressants. Hypothetically, if you have no active immune response because you are avoiding protein triggers, is your immune system in a positive situation to respond to a viral infection? Also, is there a chance that your body's immune system would react quicker and produce a larger number of antibodies or produce them quicker than a normal immune system/ normal immune response?
Regardless of diet, you cannot "eliminate protein triggers" for immune responses. Your body is constantly making immune responses, mostly regulatory, to your own cell proteins from dead cells. When you ingest food, your body will react from Peyer's patches in the gut. Autoimmunity can be triggered by a viral infection in what we call "bystander effect", where self-reactive dormant T cell clones are activated by cytokines. There is no evidence that patients with autoimmunity have a superior response to viral infections.