It has been described as food faddism and quackery, with critics arguing that it is based upon an exaggerated belief in the effects of nutrition upon health and disease.
Diploma mills are not accredited, and frequently engage in pseudoscience and food faddism.
Characteristics of his writing included romanticism, an enthusiasm for natural environments, idealization of aboriginal lifeways, and health faddism.
It has been described as a form of food faddism and even quackery.
