This film proposes an explanation to the alarming sudden increase in a variety of inflammatory illnesses regarding intestinal function, infertility, food allergies, and possibly even the rise of conditions of autism. The GMO foods and introduction of pesticides into our food system are causing chaos with our immune systems, and the illnesses are our bodies telling us to reject them.
I have personally experienced this; for over 2 years I suffered from harsh intestinal symptoms. I stopped eating modified wheat products and cured myself completely.
There is a great metaphor in the film; If you buy a car that runs on gasoline, and you start putting diesel in it, you can expect to start seeing some problems with the vehicle.