The reasons why people are gluten intolerant or develop celiac disease are not entirely clear, but it is known that gluten is the activator in this genetically predisposed condition. It’s also believed there are other environmental triggers that can cause the body to reject gluten, but those specific triggers have not been fully studied and are yet to be confirmed.
Some experts believe that stress can be an environmental trigger that may shift the body of someone who is genetically predisposed into a state of permanent gluten intolerance, and thus becomes more prone to developing celiac disease. And while these stress factors are not exactly understood and defined by the medical community, it’s speculated that stress resulting from trauma, injury, infection, or even pregnancy could be a factor.
Diet is also a topic of speculation. Could an individual’s diet shift the body into a state of stress and therefore make the body more susceptible to becoming gluten intolerant if the gene is present? Conclusive answers are not yet available and much research remains to be done before the causes and environmental triggers of gluten intolerance and celiac disease are more clearly understood.