Non-coeliac gluten sensitivity — a look at the evidence behind the headlines

“Going gluten-free was a real game changer.” That was the sporty headline carried by the Express online newspaper¹ in reference to a story on Novak Djokovic, the Serbian tennis ace who just keeps on winning. Apparently “plagued by tight chest pain and stomach spasms and unable to overcome breathing difficulties and fatigue”, Djokovic was told he had a gluten intolerance, “a diagnosis which would allow the Serbian to overhaul his diet and become the best player in the world”.