A statement from his website sums it up best,
There is little doubt that in terms of quality, much of the food sold in the United States lags behind those sold in other nations. In fact, what you are eating now may ALREADY be banned in other countries because of harmful additives, growth promoters, genetically engineered ingredients, or other dangerous practices.
The overall level of health in the country is deteriorating, faring lower than other industrialized countries even in the face of greater healthcare spending. You can’t help but see a connection between these toxic foods and the rising rates of disease. from now on.More words: Source