Why wheat, one of the staple food of humanity, is becoming a poison for a growing number of people today ? An investigation on the emergence of a new gluten-free products market. And yet, the real cause of this sudden tsunami of grain intolerance remains a mystery. How come all of a sudden, many of us no longer support cereal, highly nutritious in protein? Have recent changes in our eating habits triggered the epidemic? Is wheat not the good old grain we've been eating for 10,000 years? Scientists, activists and committed farmers are trying to uncover the truth on the real qualities of industrial foods.